64887846 has 16 divisors (see below), whose sum is σ = 131976000. Its totient is φ = 21262568.

The previous prime is 64887811. The next prime is 64887881. The reversal of 64887846 is 64878846.

It is an interprime number because it is at equal distance from previous prime (64887811) and next prime (64887881).

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91296 + ... + 92003.

It is an arithmetic number, because the mean of its divisors is an integer number (8248500).

Almost surely, 2^64887846 is an apocalyptic number.

64887846 is an abundant number, since it is smaller than the sum of its proper divisors (67088154).

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

64887846 is a wasteful number, since it uses less digits than its factorization.

64887846 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183363.

The product of its digits is 2064384, while the sum is 51.

The square root of 64887846 is about 8055.2992495624. The cubic root of 64887846 is about 401.8411912007.

The spelling of 64887846 in words is "sixty-four million, eight hundred eighty-seven thousand, eight hundred forty-six".