99624720 has 160 divisors (see below), whose sum is σ = 341978112. Its totient is φ = 23832576.

The previous prime is 99624713. The next prime is 99624727. The reversal of 99624720 is 2742699.

It is an interprime number because it is at equal distance from previous prime (99624713) and next prime (99624727).

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (99624727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 115009 + ... + 115871.

Almost surely, 2^99624720 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 99624720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (170989056).

99624720 is an abundant number, since it is smaller than the sum of its proper divisors (242353392).

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

99624720 is a wasteful number, since it uses less digits than its factorization.

99624720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 929 (or 923 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 39.

The square root of 99624720 is about 9981.2183625046. The cubic root of 99624720 is about 463.5775236923.

The spelling of 99624720 in words is "ninety-nine million, six hundred twenty-four thousand, seven hundred twenty".