89906291 has 2 divisors, whose sum is σ = 89906292. Its totient is φ = 89906290.

The previous prime is 89906281. The next prime is 89906329. The reversal of 89906291 is 19260998.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 89906291 - 2⁶ = 89906227 is a prime.

It is a super-2 number, since 2×89906291² = 16166282322753362, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (89906281) 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 as a sum of consecutive naturals, namely, 44953145 + 44953146.

It is an arithmetic number, because the mean of its divisors is an integer number (44953146).

Almost surely, 2^89906291 is an apocalyptic number.

89906291 is a deficient number, since it is larger than the sum of its proper divisors (1).

89906291 is an equidigital number, since it uses as much as digits as its factorization.

89906291 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 69984, while the sum is 44.

The square root of 89906291 is about 9481.8927962723. The cubic root of 89906291 is about 447.9848843619.

The spelling of 89906291 in words is "eighty-nine million, nine hundred six thousand, two hundred ninety-one".