64259916 has 24 divisors (see below), whose sum is σ = 171360000. Its totient is φ = 18359952.

The previous prime is 64259891. The next prime is 64259927. The reversal of 64259916 is 61995246.

It is a happy number.

64259916 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (42).

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 7 ways as a sum of consecutive naturals, for example, 382416 + ... + 382583.

It is an arithmetic number, because the mean of its divisors is an integer number (7140000).

Almost surely, 2^64259916 is an apocalyptic number.

It is an amenable number.

64259916 is an abundant number, since it is smaller than the sum of its proper divisors (107100084).

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

64259916 is a wasteful number, since it uses less digits than its factorization.

64259916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 765013 (or 765011 counting only the distinct ones).

The product of its digits is 116640, while the sum is 42.

The square root of 64259916 is about 8016.2282901624. The cubic root of 64259916 is about 400.5407602830.

The spelling of 64259916 in words is "sixty-four million, two hundred fifty-nine thousand, nine hundred sixteen".