64079855 has 16 divisors (see below), whose sum is σ = 88058880. Its totient is φ = 43851552.

The previous prime is 64079833. The next prime is 64079857. The reversal of 64079855 is 55897046.

It is a cyclic number.

It is not a de Polignac number, because 64079855 - 2¹⁴ = 64063471 is a prime.

It is a super-4 number, since 4×64079855⁴ (a number of 32 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64079857) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18986 + ... + 22104.

It is an arithmetic number, because the mean of its divisors is an integer number (5503680).

Almost surely, 2^64079855 is an apocalyptic number.

64079855 is a deficient number, since it is larger than the sum of its proper divisors (23979025).

64079855 is a wasteful number, since it uses less digits than its factorization.

64079855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3718.

The product of its (nonzero) digits is 302400, while the sum is 44.

The square root of 64079855 is about 8004.9893816294. The cubic root of 64079855 is about 400.1662954383.

The spelling of 64079855 in words is "sixty-four million, seventy-nine thousand, eight hundred fifty-five".