86509228 has 24 divisors (see below), whose sum is σ = 163289952. Its totient is φ = 39865344.

The previous prime is 86509211. The next prime is 86509229. The reversal of 86509228 is 82290568.

It is not an unprimeable number, because it can be changed into a prime (86509229) 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, 62601 + ... + 63967.

It is an arithmetic number, because the mean of its divisors is an integer number (6803748).

Almost surely, 2^86509228 is an apocalyptic number.

It is an amenable number.

86509228 is a deficient number, since it is larger than the sum of its proper divisors (76780724).

86509228 is a wasteful number, since it uses less digits than its factorization.

86509228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2601 (or 2599 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 40.

The square root of 86509228 is about 9301.0337059920. The cubic root of 86509228 is about 442.2699974011.

The spelling of 86509228 in words is "eighty-six million, five hundred nine thousand, two hundred twenty-eight".