86996691 has 24 divisors (see below), whose sum is σ = 128696256. Its totient is φ = 56609280.

The previous prime is 86996677. The next prime is 86996713. The reversal of 86996691 is 19669968.

It is not a de Polignac number, because 86996691 - 2⁵ = 86996659 is a prime.

It is not an unprimeable number, because it can be changed into a prime (86996291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 128931 + ... + 129603.

It is an arithmetic number, because the mean of its divisors is an integer number (5362344).

Almost surely, 2^86996691 is an apocalyptic number.

86996691 is a deficient number, since it is larger than the sum of its proper divisors (41699565).

86996691 is a wasteful number, since it uses less digits than its factorization.

86996691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1003 (or 1000 counting only the distinct ones).

The product of its digits is 1259712, while the sum is 54.

The square root of 86996691 is about 9327.2016703832. The cubic root of 86996691 is about 443.0991443447.

The spelling of 86996691 in words is "eighty-six million, nine hundred ninety-six thousand, six hundred ninety-one".