64057866 has 8 divisors (see below), whose sum is σ = 128115744. Its totient is φ = 21352620.

The previous prime is 64057849. The next prime is 64057907. The reversal of 64057866 is 66875046.

It is a happy number.

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

64057866 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5338150 + ... + 5338161.

It is an arithmetic number, because the mean of its divisors is an integer number (16014468).

Almost surely, 2^64057866 is an apocalyptic number.

64057866 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

64057866 is a wasteful number, since it uses less digits than its factorization.

64057866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10676316.

The product of its (nonzero) digits is 241920, while the sum is 42.

The square root of 64057866 is about 8003.6158078708. The cubic root of 64057866 is about 400.1205178516.

The spelling of 64057866 in words is "sixty-four million, fifty-seven thousand, eight hundred sixty-six".