86624772 has 24 divisors (see below), whose sum is σ = 217672896. Its totient is φ = 26653728.

The previous prime is 86624761. The next prime is 86624773. The reversal of 86624772 is 27742668.

It is a super-2 number, since 2×86624772² = 15007702248103968, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (86624773) 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, 277488 + ... + 277799.

It is an arithmetic number, because the mean of its divisors is an integer number (9069704).

Almost surely, 2^86624772 is an apocalyptic number.

It is an amenable number.

86624772 is an abundant number, since it is smaller than the sum of its proper divisors (131048124).

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

86624772 is a wasteful number, since it uses less digits than its factorization.

86624772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 555307 (or 555305 counting only the distinct ones).

The product of its digits is 225792, while the sum is 42.

The square root of 86624772 is about 9307.2429859760. The cubic root of 86624772 is about 442.4668122832.

The spelling of 86624772 in words is "eighty-six million, six hundred twenty-four thousand, seven hundred seventy-two".