99936657 has 12 divisors (see below), whose sum is σ = 144636804. Its totient is φ = 66493440.

The previous prime is 99936649. The next prime is 99936671. The reversal of 99936657 is 75663999.

It can be written as a sum of positive squares in 2 ways, for example, as 27499536 + 72437121 = 5244^2 + 8511^2 .

It is not a de Polignac number, because 99936657 - 2³ = 99936649 is a prime.

It is not an unprimeable number, because it can be changed into a prime (99936757) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5968 + ... + 15345.

It is an arithmetic number, because the mean of its divisors is an integer number (12053067).

Almost surely, 2^99936657 is an apocalyptic number.

It is an amenable number.

99936657 is a deficient number, since it is larger than the sum of its proper divisors (44700147).

99936657 is a wasteful number, since it uses less digits than its factorization.

99936657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21840 (or 21837 counting only the distinct ones).

The product of its digits is 2755620, while the sum is 54.

The square root of 99936657 is about 9996.8323482991. The cubic root of 99936657 is about 464.0608586073.

The spelling of 99936657 in words is "ninety-nine million, nine hundred thirty-six thousand, six hundred fifty-seven".