85752931 has 4 divisors (see below), whose sum is σ = 93548664. Its totient is φ = 77957200.

The previous prime is 85752917. The next prime is 85752941. The reversal of 85752931 is 13925758.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 85752931 - 2⁵ = 85752899 is a prime.

It is a super-2 number, since 2×85752931² = 14707130350181522, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (85752941) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3897850 + ... + 3897871.

It is an arithmetic number, because the mean of its divisors is an integer number (23387166).

Almost surely, 2^85752931 is an apocalyptic number.

85752931 is a deficient number, since it is larger than the sum of its proper divisors (7795733).

85752931 is a wasteful number, since it uses less digits than its factorization.

85752931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7795732.

The product of its digits is 75600, while the sum is 40.

The square root of 85752931 is about 9260.2878464981. The cubic root of 85752931 is about 440.9773916626.

The spelling of 85752931 in words is "eighty-five million, seven hundred fifty-two thousand, nine hundred thirty-one".