86391796 has 6 divisors (see below), whose sum is σ = 151185650. Its totient is φ = 43195896.

The previous prime is 86391791. The next prime is 86391821. The reversal of 86391796 is 69719368.

It can be written as a sum of positive squares in only one way, i.e., 60279696 + 26112100 = 7764^2 + 5110^2 .

It is a super-2 number, since 2×86391796² = 14927084832211232, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86391791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10798971 + ... + 10798978.

Almost surely, 2^86391796 is an apocalyptic number.

It is an amenable number.

86391796 is a deficient number, since it is larger than the sum of its proper divisors (64793854).

86391796 is a wasteful number, since it uses less digits than its factorization.

86391796 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21597953 (or 21597951 counting only the distinct ones).

The product of its digits is 489888, while the sum is 49.

The square root of 86391796 is about 9294.7187154857. The cubic root of 86391796 is about 442.0697868965.

The spelling of 86391796 in words is "eighty-six million, three hundred ninety-one thousand, seven hundred ninety-six".