86691496 has 8 divisors (see below), whose sum is σ = 162546570. Its totient is φ = 43345744.

The previous prime is 86691491. The next prime is 86691499. The reversal of 86691496 is 69419668.

It can be written as a sum of positive squares in only one way, i.e., 62188996 + 24502500 = 7886^2 + 4950^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (86691491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5418211 + ... + 5418226.

Almost surely, 2^86691496 is an apocalyptic number.

It is an amenable number.

86691496 is a deficient number, since it is larger than the sum of its proper divisors (75855074).

86691496 is a wasteful number, since it uses less digits than its factorization.

86691496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10836443 (or 10836439 counting only the distinct ones).

The product of its digits is 559872, while the sum is 49.

The square root of 86691496 is about 9310.8268161319. The cubic root of 86691496 is about 442.5803886422.

The spelling of 86691496 in words is "eighty-six million, six hundred ninety-one thousand, four hundred ninety-six".