85817964 has 24 divisors (see below), whose sum is σ = 201822208. Its totient is φ = 28380240.

The previous prime is 85817947. The next prime is 85817987. The reversal of 85817964 is 46971858.

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, 26632 + ... + 29679.

Almost surely, 2^85817964 is an apocalyptic number.

It is an amenable number.

85817964 is an abundant number, since it is smaller than the sum of its proper divisors (116004244).

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

85817964 is a wasteful number, since it uses less digits than its factorization.

85817964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56445 (or 56443 counting only the distinct ones).

The product of its digits is 483840, while the sum is 48.

The square root of 85817964 is about 9263.7985729397. The cubic root of 85817964 is about 441.0888391114.

The spelling of 85817964 in words is "eighty-five million, eight hundred seventeen thousand, nine hundred sixty-four".