89621499 has 24 divisors (see below), whose sum is σ = 137598912. Its totient is φ = 51450480.

The previous prime is 89621489. The next prime is 89621509. The reversal of 89621499 is 99412698.

It is an interprime number because it is at equal distance from previous prime (89621489) and next prime (89621509).

It is not a de Polignac number, because 89621499 - 2⁸ = 89621243 is a prime.

It is not an unprimeable number, because it can be changed into a prime (89621419) 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 in 23 ways as a sum of consecutive naturals, for example, 8152 + ... + 15674.

It is an arithmetic number, because the mean of its divisors is an integer number (5733288).

Almost surely, 2^89621499 is an apocalyptic number.

89621499 is a deficient number, since it is larger than the sum of its proper divisors (47977413).

89621499 is a wasteful number, since it uses less digits than its factorization.

89621499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7575 (or 7556 counting only the distinct ones).

The product of its digits is 279936, while the sum is 48.

The square root of 89621499 is about 9466.8632080537. The cubic root of 89621499 is about 447.5113636930.

The spelling of 89621499 in words is "eighty-nine million, six hundred twenty-one thousand, four hundred ninety-nine".