99902612 has 6 divisors (see below), whose sum is σ = 174829578. Its totient is φ = 49951304.

The previous prime is 99902611. The next prime is 99902629. The reversal of 99902612 is 21620999.

It can be written as a sum of positive squares in only one way, i.e., 93006736 + 6895876 = 9644^2 + 2626^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99902611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12487823 + ... + 12487830.

It is an arithmetic number, because the mean of its divisors is an integer number (29138263).

Almost surely, 2^99902612 is an apocalyptic number.

It is an amenable number.

99902612 is a deficient number, since it is larger than the sum of its proper divisors (74926966).

99902612 is a wasteful number, since it uses less digits than its factorization.

99902612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24975657 (or 24975655 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 38.

The square root of 99902612 is about 9995.1294138695. The cubic root of 99902612 is about 464.0081560695.

The spelling of 99902612 in words is "ninety-nine million, nine hundred two thousand, six hundred twelve".