64310085 has 32 divisors (see below), whose sum is σ = 130663680. Its totient is φ = 29398464.

The previous prime is 64310083. The next prime is 64310101. The reversal of 64310085 is 58001346.

64310085 is a `hidden beast` number, since 643 + 10 + 0 + 8 + 5 = 666.

It is not a de Polignac number, because 64310085 - 2¹ = 64310083 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64310083) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 33082 + ... + 34971.

It is an arithmetic number, because the mean of its divisors is an integer number (4083240).

Almost surely, 2^64310085 is an apocalyptic number.

It is an amenable number.

64310085 is an abundant number, since it is smaller than the sum of its proper divisors (66353595).

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

64310085 is a wasteful number, since it uses less digits than its factorization.

64310085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68074 (or 68068 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 64310085 is about 8019.3568944149. The cubic root of 64310085 is about 400.6449698923.

The spelling of 64310085 in words is "sixty-four million, three hundred ten thousand, eighty-five".