64857712 has 10 divisors (see below), whose sum is σ = 125661848. Its totient is φ = 32428848.

The previous prime is 64857691. The next prime is 64857721. The reversal of 64857712 is 21775846.

It is a super-3 number, since 3×64857712³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2026788 + ... + 2026819.

Almost surely, 2^64857712 is an apocalyptic number.

It is an amenable number.

64857712 is a deficient number, since it is larger than the sum of its proper divisors (60804136).

64857712 is a wasteful number, since it uses less digits than its factorization.

64857712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4053615 (or 4053609 counting only the distinct ones).

The product of its digits is 94080, while the sum is 40.

The square root of 64857712 is about 8053.4285866331. The cubic root of 64857712 is about 401.7789763784.

The spelling of 64857712 in words is "sixty-four million, eight hundred fifty-seven thousand, seven hundred twelve".