99824520 has 64 divisors (see below), whose sum is σ = 307581120. Its totient is φ = 25899264.

The previous prime is 99824497. The next prime is 99824521. The reversal of 99824520 is 2542899.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (99824521) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6802 + ... + 15681.

It is an arithmetic number, because the mean of its divisors is an integer number (4805955).

Almost surely, 2^99824520 is an apocalyptic number.

It is an amenable number.

99824520 is an abundant number, since it is smaller than the sum of its proper divisors (207756600).

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

99824520 is a wasteful number, since it uses less digits than its factorization.

99824520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22534 (or 22530 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 39.

The square root of 99824520 is about 9991.2221474652. Note that the first 3 decimals coincide. The cubic root of 99824520 is about 463.8872223929.

The spelling of 99824520 in words is "ninety-nine million, eight hundred twenty-four thousand, five hundred twenty".