99321156 has 81 divisors (see below), whose sum is σ = 277800159. Its totient is φ = 29898000.

The previous prime is 99321121. The next prime is 99321163. The reversal of 99321156 is 65112399.

The square root of 99321156 is 9966.

It is a perfect power (a square), and thus also a powerful number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 99321156.

It is an unprimeable number.

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 in 26 ways as a sum of consecutive naturals, for example, 657681 + ... + 657831.

Almost surely, 2^99321156 is an apocalyptic number.

99321156 is the 9966-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 99321156

99321156 is an abundant number, since it is smaller than the sum of its proper divisors (178479003).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

99321156 is a wasteful number, since it uses less digits than its factorization.

99321156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 334 (or 167 counting only the distinct ones).

The product of its digits is 14580, while the sum is 36.

The cubic root of 99321156 is about 463.1061928033.

Multiplying 99321156 by its sum of digits (36), we get a square (3575561616 = 59796²).

99321156 divided by its sum of digits (36) gives a square (2758921 = 1661²).

The spelling of 99321156 in words is "ninety-nine million, three hundred twenty-one thousand, one hundred fifty-six".