89297491 has 2 divisors, whose sum is σ = 89297492. Its totient is φ = 89297490.

The previous prime is 89297479. The next prime is 89297497. The reversal of 89297491 is 19479298.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 89297491 - 2⁷ = 89297363 is a prime.

It is not a weakly prime, because it can be changed into another prime (89297497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44648745 + 44648746.

It is an arithmetic number, because the mean of its divisors is an integer number (44648746).

Almost surely, 2^89297491 is an apocalyptic number.

89297491 is a deficient number, since it is larger than the sum of its proper divisors (1).

89297491 is an equidigital number, since it uses as much as digits as its factorization.

89297491 is an evil number, because the sum of its binary digits is even.

The product of its digits is 326592, while the sum is 49.

The square root of 89297491 is about 9449.7349698285. The cubic root of 89297491 is about 446.9714175446.

The spelling of 89297491 in words is "eighty-nine million, two hundred ninety-seven thousand, four hundred ninety-one".