86215432 has 16 divisors (see below), whose sum is σ = 171163260. Its totient is φ = 40571904.

The previous prime is 86215421. The next prime is 86215447. The reversal of 86215432 is 23451268.

It can be written as a sum of positive squares in 2 ways, for example, as 85266756 + 948676 = 9234^2 + 974^2 .

It is a junction number, because it is equal to n+sod(n) for n = 86215394 and 86215403.

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, 316833 + ... + 317104.

Almost surely, 2^86215432 is an apocalyptic number.

It is an amenable number.

86215432 is a deficient number, since it is larger than the sum of its proper divisors (84947828).

86215432 is a wasteful number, since it uses less digits than its factorization.

86215432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 633960 (or 633956 counting only the distinct ones).

The product of its digits is 11520, while the sum is 31.

The square root of 86215432 is about 9285.2265454323. The cubic root of 86215432 is about 441.7687617467.

The spelling of 86215432 in words is "eighty-six million, two hundred fifteen thousand, four hundred thirty-two".