89869597 has 2 divisors, whose sum is σ = 89869598. Its totient is φ = 89869596.

The previous prime is 89869573. The next prime is 89869649. The reversal of 89869597 is 79596898.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 84162276 + 5707321 = 9174^2 + 2389^2 .

It is a cyclic number.

It is not a de Polignac number, because 89869597 - 2¹⁹ = 89345309 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89869517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44934798 + 44934799.

It is an arithmetic number, because the mean of its divisors is an integer number (44934799).

Almost surely, 2^89869597 is an apocalyptic number.

It is an amenable number.

89869597 is a deficient number, since it is larger than the sum of its proper divisors (1).

89869597 is an equidigital number, since it uses as much as digits as its factorization.

89869597 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9797760, while the sum is 61.

The square root of 89869597 is about 9479.9576475847. The cubic root of 89869597 is about 447.9239298057.

The spelling of 89869597 in words is "eighty-nine million, eight hundred sixty-nine thousand, five hundred ninety-seven".