99317772 has 48 divisors (see below), whose sum is σ = 268692480. Its totient is φ = 31665744.

The previous prime is 99317761. The next prime is 99317783. The reversal of 99317772 is 27771399.

It is an interprime number because it is at equal distance from previous prime (99317761) and next prime (99317783).

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, 17508 + ... + 22475.

It is an arithmetic number, because the mean of its divisors is an integer number (5597760).

Almost surely, 2^99317772 is an apocalyptic number.

99317772 is a gapful number since it is divisible by the number (92) formed by its first and last digit.

It is an amenable number.

99317772 is an abundant number, since it is smaller than the sum of its proper divisors (169374708).

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

99317772 is a wasteful number, since it uses less digits than its factorization.

99317772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40019 (or 40011 counting only the distinct ones).

The product of its digits is 166698, while the sum is 45.

The square root of 99317772 is about 9965.8302213112. The cubic root of 99317772 is about 463.1009332017.

The spelling of 99317772 in words is "ninety-nine million, three hundred seventeen thousand, seven hundred seventy-two".