64867450 has 12 divisors (see below), whose sum is σ = 120653550. Its totient is φ = 25946960.

The previous prime is 64867441. The next prime is 64867471. The reversal of 64867450 is 5476846.

It can be written as a sum of positive squares in 3 ways, for example, as 60326289 + 4541161 = 7767^2 + 2131^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 648625 + ... + 648724.

Almost surely, 2^64867450 is an apocalyptic number.

64867450 is a deficient number, since it is larger than the sum of its proper divisors (55786100).

64867450 is a wasteful number, since it uses less digits than its factorization.

64867450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1297361 (or 1297356 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 40.

The square root of 64867450 is about 8054.0331511610. The cubic root of 64867450 is about 401.7990836139.

The spelling of 64867450 in words is "sixty-four million, eight hundred sixty-seven thousand, four hundred fifty".