86637380 has 12 divisors (see below), whose sum is σ = 181938540. Its totient is φ = 34654944.

The previous prime is 86637379. The next prime is 86637407. The reversal of 86637380 is 8373668.

It can be written as a sum of positive squares in 2 ways, for example, as 63616576 + 23020804 = 7976^2 + 4798^2 .

It is a super-2 number, since 2×86637380² = 15012071226528800, which contains 22 as substring.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2165915 + ... + 2165954.

It is an arithmetic number, because the mean of its divisors is an integer number (15161545).

Almost surely, 2^86637380 is an apocalyptic number.

It is an amenable number.

86637380 is an abundant number, since it is smaller than the sum of its proper divisors (95301160).

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

86637380 is a wasteful number, since it uses less digits than its factorization.

86637380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4331878 (or 4331876 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 41.

The square root of 86637380 is about 9307.9202832856. The cubic root of 86637380 is about 442.4882778556.

The spelling of 86637380 in words is "eighty-six million, six hundred thirty-seven thousand, three hundred eighty".