86889172 has 24 divisors (see below), whose sum is σ = 156854880. Its totient is φ = 42084000.

The previous prime is 86889157. The next prime is 86889181. The reversal of 86889172 is 27198868.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35979 + ... + 38317.

It is an arithmetic number, because the mean of its divisors is an integer number (6535620).

Almost surely, 2^86889172 is an apocalyptic number.

It is an amenable number.

86889172 is a deficient number, since it is larger than the sum of its proper divisors (69965708).

86889172 is a wasteful number, since it uses less digits than its factorization.

86889172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2631 (or 2629 counting only the distinct ones).

The product of its digits is 387072, while the sum is 49.

The square root of 86889172 is about 9321.4361554430. The cubic root of 86889172 is about 442.9165273717.

The spelling of 86889172 in words is "eighty-six million, eight hundred eighty-nine thousand, one hundred seventy-two".