86634472 has 16 divisors (see below), whose sum is σ = 162880740. Its totient is φ = 43199616.

The previous prime is 86634461. The next prime is 86634503. The reversal of 86634472 is 27443668.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 86378436 + 256036 = 9294^2 + 506^2 .

It is a super-3 number, since 3×86634472³ (a number of 25 digits) contains 333 as substring.

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, 11533 + ... + 17500.

Almost surely, 2^86634472 is an apocalyptic number.

It is an amenable number.

86634472 is a deficient number, since it is larger than the sum of its proper divisors (76246268).

86634472 is a wasteful number, since it uses less digits than its factorization.

86634472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29412 (or 29408 counting only the distinct ones).

The product of its digits is 193536, while the sum is 40.

The square root of 86634472 is about 9307.7640709249. The cubic root of 86634472 is about 442.4833270660.

The spelling of 86634472 in words is "eighty-six million, six hundred thirty-four thousand, four hundred seventy-two".