99653995 has 24 divisors (see below), whose sum is σ = 143607168. Its totient is φ = 66124800.

The previous prime is 99653929. The next prime is 99654001. The reversal of 99653995 is 59935699.

It is not a de Polignac number, because 99653995 - 2²¹ = 97556843 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1035 + ... + 14155.

It is an arithmetic number, because the mean of its divisors is an integer number (5983632).

Almost surely, 2^99653995 is an apocalyptic number.

99653995 is a deficient number, since it is larger than the sum of its proper divisors (43953173).

99653995 is a wasteful number, since it uses less digits than its factorization.

99653995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13171 (or 13164 counting only the distinct ones).

The product of its digits is 2952450, while the sum is 55.

The square root of 99653995 is about 9982.6847591217. The cubic root of 99653995 is about 463.6229270919.

The spelling of 99653995 in words is "ninety-nine million, six hundred fifty-three thousand, nine hundred ninety-five".