89999575 has 12 divisors (see below), whose sum is σ = 116452368. Its totient is φ = 68868800.

The previous prime is 89999573. The next prime is 89999579. The reversal of 89999575 is 57599998.

89999575 = T₂₇₈₆ + T₂₇₈₇ + ... + T₂₈₀₈.

It is a happy number.

It is not a de Polignac number, because 89999575 - 2¹ = 89999573 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89999573) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 77686 + ... + 78835.

It is an arithmetic number, because the mean of its divisors is an integer number (9704364).

Almost surely, 2^89999575 is an apocalyptic number.

89999575 is a deficient number, since it is larger than the sum of its proper divisors (26452793).

89999575 is a wasteful number, since it uses less digits than its factorization.

89999575 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156554 (or 156549 counting only the distinct ones).

The product of its digits is 9185400, while the sum is 61.

The square root of 89999575 is about 9486.8105810119. The cubic root of 89999575 is about 448.1397692483.

The spelling of 89999575 in words is "eighty-nine million, nine hundred ninety-nine thousand, five hundred seventy-five".