89520791 has 2 divisors, whose sum is σ = 89520792. Its totient is φ = 89520790.

The previous prime is 89520757. The next prime is 89520811. The reversal of 89520791 is 19702598.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 89520791 - 2⁶ = 89520727 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89520701) 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, 44760395 + 44760396.

It is an arithmetic number, because the mean of its divisors is an integer number (44760396).

Almost surely, 2^89520791 is an apocalyptic number.

89520791 is a deficient number, since it is larger than the sum of its proper divisors (1).

89520791 is an equidigital number, since it uses as much as digits as its factorization.

89520791 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 45360, while the sum is 41.

The square root of 89520791 is about 9461.5427388983. The cubic root of 89520791 is about 447.3436774924.

The spelling of 89520791 in words is "eighty-nine million, five hundred twenty thousand, seven hundred ninety-one".