85297188 has 24 divisors (see below), whose sum is σ = 199866240. Its totient is φ = 28312480.

The previous prime is 85297183. The next prime is 85297189. The reversal of 85297188 is 88179258.

It is a super-2 number, since 2×85297188² = 14551220561414688, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (85297181) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12003 + ... + 17738.

It is an arithmetic number, because the mean of its divisors is an integer number (8327760).

Almost surely, 2^85297188 is an apocalyptic number.

It is an amenable number.

85297188 is an abundant number, since it is smaller than the sum of its proper divisors (114569052).

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

85297188 is a wasteful number, since it uses less digits than its factorization.

85297188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29987 (or 29985 counting only the distinct ones).

The product of its digits is 322560, while the sum is 48.

The square root of 85297188 is about 9235.6476762596. The cubic root of 85297188 is about 440.1947966671.

The spelling of 85297188 in words is "eighty-five million, two hundred ninety-seven thousand, one hundred eighty-eight".