99757628 has 12 divisors (see below), whose sum is σ = 180207552. Its totient is φ = 48269760.

The previous prime is 99757589. The next prime is 99757673. The reversal of 99757628 is 82675799.

It is a self number, because there is not a number n which added to its sum of digits gives 99757628.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 402125 + ... + 402372.

It is an arithmetic number, because the mean of its divisors is an integer number (15017296).

Almost surely, 2^99757628 is an apocalyptic number.

It is an amenable number.

99757628 is a deficient number, since it is larger than the sum of its proper divisors (80449924).

99757628 is a wasteful number, since it uses less digits than its factorization.

99757628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 804532 (or 804530 counting only the distinct ones).

The product of its digits is 1905120, while the sum is 53.

The square root of 99757628 is about 9987.8740480645. The cubic root of 99757628 is about 463.7835829338.

The spelling of 99757628 in words is "ninety-nine million, seven hundred fifty-seven thousand, six hundred twenty-eight".