85956915 has 32 divisors (see below), whose sum is σ = 150481152. Its totient is φ = 41552000.

The previous prime is 85956907. The next prime is 85956929. The reversal of 85956915 is 51965958.

It is a happy number.

It is not a de Polignac number, because 85956915 - 2³ = 85956907 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 80485 + ... + 81545.

It is an arithmetic number, because the mean of its divisors is an integer number (4702536).

Almost surely, 2^85956915 is an apocalyptic number.

85956915 is a deficient number, since it is larger than the sum of its proper divisors (64524237).

85956915 is a wasteful number, since it uses less digits than its factorization.

85956915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1571.

The product of its digits is 486000, while the sum is 48.

The square root of 85956915 is about 9271.2952169586. The cubic root of 85956915 is about 441.3267717591.

The spelling of 85956915 in words is "eighty-five million, nine hundred fifty-six thousand, nine hundred fifteen".