86523399 has 12 divisors (see below), whose sum is σ = 126192976. Its totient is φ = 57121632.

The previous prime is 86523389. The next prime is 86523403. The reversal of 86523399 is 99332568.

It is not a de Polignac number, because 86523399 - 2⁷ = 86523271 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86523329) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 45742 + ... + 47595.

Almost surely, 2^86523399 is an apocalyptic number.

86523399 is a deficient number, since it is larger than the sum of its proper divisors (39669577).

86523399 is a wasteful number, since it uses less digits than its factorization.

86523399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93446 (or 93443 counting only the distinct ones).

The product of its digits is 349920, while the sum is 45.

The square root of 86523399 is about 9301.7954718431. The cubic root of 86523399 is about 442.2941453680.

The spelling of 86523399 in words is "eighty-six million, five hundred twenty-three thousand, three hundred ninety-nine".