89539447 has 2 divisors, whose sum is σ = 89539448. Its totient is φ = 89539446.

The previous prime is 89539441. The next prime is 89539517. The reversal of 89539447 is 74493598.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 89539447 - 2⁷ = 89539319 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 89539447.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89539441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44769723 + 44769724.

It is an arithmetic number, because the mean of its divisors is an integer number (44769724).

Almost surely, 2^89539447 is an apocalyptic number.

89539447 is a deficient number, since it is larger than the sum of its proper divisors (1).

89539447 is an equidigital number, since it uses as much as digits as its factorization.

89539447 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1088640, while the sum is 49.

The square root of 89539447 is about 9462.5285732726. The cubic root of 89539447 is about 447.3747505868.

The spelling of 89539447 in words is "eighty-nine million, five hundred thirty-nine thousand, four hundred forty-seven".