64462865 has 8 divisors (see below), whose sum is σ = 79242408. Its totient is φ = 50312320.

The previous prime is 64462847. The next prime is 64462889. The reversal of 64462865 is 56826446.

It can be written as a sum of positive squares in 4 ways, for example, as 478864 + 63984001 = 692^2 + 7999^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 64462865 - 2¹⁶ = 64397329 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 157022 + ... + 157431.

It is an arithmetic number, because the mean of its divisors is an integer number (9905301).

Almost surely, 2^64462865 is an apocalyptic number.

It is an amenable number.

64462865 is a deficient number, since it is larger than the sum of its proper divisors (14779543).

64462865 is a wasteful number, since it uses less digits than its factorization.

64462865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314499.

The product of its digits is 276480, while the sum is 41.

The square root of 64462865 is about 8028.8769451275. The cubic root of 64462865 is about 400.9619866827.

The spelling of 64462865 in words is "sixty-four million, four hundred sixty-two thousand, eight hundred sixty-five".