91696651 has 2 divisors, whose sum is σ = 91696652. Its totient is φ = 91696650.

The previous prime is 91696639. The next prime is 91696673. The reversal of 91696651 is 15669619.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 91696651 - 2⁷ = 91696523 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 91696598 and 91696607.

It is not a weakly prime, because it can be changed into another prime (91696621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45848325 + 45848326.

It is an arithmetic number, because the mean of its divisors is an integer number (45848326).

Almost surely, 2^91696651 is an apocalyptic number.

91696651 is a deficient number, since it is larger than the sum of its proper divisors (1).

91696651 is an equidigital number, since it uses as much as digits as its factorization.

91696651 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 87480, while the sum is 43.

The square root of 91696651 is about 9575.8368302723. The cubic root of 91696651 is about 450.9390284387.

The spelling of 91696651 in words is "ninety-one million, six hundred ninety-six thousand, six hundred fifty-one".