64867456 has 32 divisors (see below), whose sum is σ = 129851100. Its totient is φ = 32277504.

The previous prime is 64867441. The next prime is 64867471. The reversal of 64867456 is 65476846.

64867456 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (64867441) and next prime (64867471).

It can be written as a sum of positive squares in 2 ways, for example, as 43560000 + 21307456 = 6600^2 + 4616^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28206 + ... + 30418.

Almost surely, 2^64867456 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64867456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64925550).

64867456 is an abundant number, since it is smaller than the sum of its proper divisors (64983644).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64867456 is a wasteful number, since it uses less digits than its factorization.

With its predecessor (64867455) it forms a Ruth-Aaron pair, since the sum of their distinct prime factors is the same (2444).

64867456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2456 (or 2444 counting only the distinct ones).

The product of its digits is 967680, while the sum is 46.

The square root of 64867456 is about 8054.0335236452. The cubic root of 64867456 is about 401.7990960022.

The spelling of 64867456 in words is "sixty-four million, eight hundred sixty-seven thousand, four hundred fifty-six".