86317492 has 6 divisors (see below), whose sum is σ = 151055618. Its totient is φ = 43158744.

The previous prime is 86317481. The next prime is 86317493. The reversal of 86317492 is 29471368.

It can be written as a sum of positive squares in only one way, i.e., 54552996 + 31764496 = 7386^2 + 5636^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86317493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10789683 + ... + 10789690.

Almost surely, 2^86317492 is an apocalyptic number.

It is an amenable number.

86317492 is a deficient number, since it is larger than the sum of its proper divisors (64738126).

86317492 is a wasteful number, since it uses less digits than its factorization.

86317492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21579377 (or 21579375 counting only the distinct ones).

The product of its digits is 72576, while the sum is 40.

The square root of 86317492 is about 9290.7207470680. The cubic root of 86317492 is about 441.9430118374.

The spelling of 86317492 in words is "eighty-six million, three hundred seventeen thousand, four hundred ninety-two".