64856883 has 16 divisors (see below), whose sum is σ = 106432256. Its totient is φ = 34210080.

The previous prime is 64856879. The next prime is 64856917. The reversal of 64856883 is 38865846.

It is not a de Polignac number, because 64856883 - 2² = 64856879 is a prime.

It is not an unprimeable number, because it can be changed into a prime (64856833) 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, 118513 + ... + 119058.

It is an arithmetic number, because the mean of its divisors is an integer number (6652016).

Almost surely, 2^64856883 is an apocalyptic number.

64856883 is a deficient number, since it is larger than the sum of its proper divisors (41575373).

64856883 is a wasteful number, since it uses less digits than its factorization.

64856883 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237594.

The product of its digits is 1105920, while the sum is 48.

The square root of 64856883 is about 8053.3771177066. The cubic root of 64856883 is about 401.7772645481. Note that the first 3 decimals are identical.

The spelling of 64856883 in words is "sixty-four million, eight hundred fifty-six thousand, eight hundred eighty-three".