86722900 has 36 divisors (see below), whose sum is σ = 205299360. Its totient is φ = 31535200.

The previous prime is 86722891. The next prime is 86722901. The reversal of 86722900 is 922768.

It is a super-2 number, since 2×86722900² = 15041722768820000, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86722901) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 38320 + ... + 40519.

It is an arithmetic number, because the mean of its divisors is an integer number (5702760).

Almost surely, 2^86722900 is an apocalyptic number.

It is an amenable number.

86722900 is an abundant number, since it is smaller than the sum of its proper divisors (118576460).

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

86722900 is a wasteful number, since it uses less digits than its factorization.

86722900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78864 (or 78857 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 86722900 is about 9312.5130872391. The cubic root of 86722900 is about 442.6338237819.

The spelling of 86722900 in words is "eighty-six million, seven hundred twenty-two thousand, nine hundred".