99609570 has 48 divisors (see below), whose sum is σ = 262866240. Its totient is φ = 26164512.

The previous prime is 99609563. The next prime is 99609581. The reversal of 99609570 is 7590699.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2230 + ... + 14289.

It is an arithmetic number, because the mean of its divisors is an integer number (5476380).

Almost surely, 2^99609570 is an apocalyptic number.

99609570 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

99609570 is an abundant number, since it is smaller than the sum of its proper divisors (163256670).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

99609570 is a wasteful number, since it uses less digits than its factorization.

99609570 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16599 (or 16596 counting only the distinct ones).

The product of its (nonzero) digits is 153090, while the sum is 45.

The square root of 99609570 is about 9980.4594082637. The cubic root of 99609570 is about 463.5540236496.

The spelling of 99609570 in words is "ninety-nine million, six hundred nine thousand, five hundred seventy".