89050391 has 2 divisors, whose sum is σ = 89050392. Its totient is φ = 89050390.

The previous prime is 89050363. The next prime is 89050399. The reversal of 89050391 is 19305098.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 89050391 - 2²² = 84856087 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89050399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44525195 + 44525196.

It is an arithmetic number, because the mean of its divisors is an integer number (44525196).

Almost surely, 2^89050391 is an apocalyptic number.

89050391 is a deficient number, since it is larger than the sum of its proper divisors (1).

89050391 is an equidigital number, since it uses as much as digits as its factorization.

89050391 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9720, while the sum is 35.

The square root of 89050391 is about 9436.6514717881. The cubic root of 89050391 is about 446.5587569451.

The spelling of 89050391 in words is "eighty-nine million, fifty thousand, three hundred ninety-one".