99817792 has 112 divisors (see below), whose sum is σ = 225308160. Its totient is φ = 43642368.

The previous prime is 99817771. The next prime is 99817813. The reversal of 99817792 is 29771899.

It is an interprime number because it is at equal distance from previous prime (99817771) and next prime (99817813).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1202583 + ... + 1202665.

It is an arithmetic number, because the mean of its divisors is an integer number (2011680).

Almost surely, 2^99817792 is an apocalyptic number.

99817792 is a gapful number since it is divisible by the number (92) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 99817792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (112654080).

99817792 is an abundant number, since it is smaller than the sum of its proper divisors (125490368).

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

99817792 is a wasteful number, since it uses less digits than its factorization.

99817792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180 (or 170 counting only the distinct ones).

The product of its digits is 571536, while the sum is 52.

The square root of 99817792 is about 9990.8854462455. The cubic root of 99817792 is about 463.8768004266.

The spelling of 99817792 in words is "ninety-nine million, eight hundred seventeen thousand, seven hundred ninety-two".