85697512 has 8 divisors (see below), whose sum is σ = 160682850. Its totient is φ = 42848752.

The previous prime is 85697509. The next prime is 85697533. The reversal of 85697512 is 21579658.

It can be written as a sum of positive squares in only one way, i.e., 79316836 + 6380676 = 8906^2 + 2526^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5356087 + ... + 5356102.

Almost surely, 2^85697512 is an apocalyptic number.

It is an amenable number.

85697512 is a deficient number, since it is larger than the sum of its proper divisors (74985338).

85697512 is a wasteful number, since it uses less digits than its factorization.

85697512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10712195 (or 10712191 counting only the distinct ones).

The product of its digits is 151200, while the sum is 43.

The square root of 85697512 is about 9257.2950692954. The cubic root of 85697512 is about 440.8823753086.

The spelling of 85697512 in words is "eighty-five million, six hundred ninety-seven thousand, five hundred twelve".