99788725 has 24 divisors (see below), whose sum is σ = 132902208. Its totient is φ = 74054400.

The previous prime is 99788723. The next prime is 99788753. The reversal of 99788725 is 52788799.

It is not a de Polignac number, because 99788725 - 2¹ = 99788723 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 (99788723) 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, 28522 + ... + 31828.

It is an arithmetic number, because the mean of its divisors is an integer number (5537592).

Almost surely, 2^99788725 is an apocalyptic number.

It is an amenable number.

99788725 is a deficient number, since it is larger than the sum of its proper divisors (33113483).

99788725 is a wasteful number, since it uses less digits than its factorization.

99788725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3405 (or 3400 counting only the distinct ones).

The product of its digits is 2540160, while the sum is 55.

The square root of 99788725 is about 9989.4306644573. The cubic root of 99788725 is about 463.8317689891.

The spelling of 99788725 in words is "ninety-nine million, seven hundred eighty-eight thousand, seven hundred twenty-five".