86973291 has 32 divisors (see below), whose sum is σ = 134107200. Its totient is φ = 55641600.

The previous prime is 86973269. The next prime is 86973301. The reversal of 86973291 is 19237968.

It is not a de Polignac number, because 86973291 - 2¹⁸ = 86711147 is a prime.

It is not an unprimeable number, because it can be changed into a prime (86973091) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 216691 + ... + 217091.

It is an arithmetic number, because the mean of its divisors is an integer number (4190850).

Almost surely, 2^86973291 is an apocalyptic number.

86973291 is a deficient number, since it is larger than the sum of its proper divisors (47133909).

86973291 is a wasteful number, since it uses less digits than its factorization.

86973291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 716 (or 710 counting only the distinct ones).

The product of its digits is 163296, while the sum is 45.

The square root of 86973291 is about 9325.9471905003. The cubic root of 86973291 is about 443.0594131410.

The spelling of 86973291 in words is "eighty-six million, nine hundred seventy-three thousand, two hundred ninety-one".