99319772 has 6 divisors (see below), whose sum is σ = 173809608. Its totient is φ = 49659884.

The previous prime is 99319771. The next prime is 99319777. The reversal of 99319772 is 27791399.

It is a super-2 number, since 2×99319772² = 19728834220263968, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99319771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12414968 + ... + 12414975.

It is an arithmetic number, because the mean of its divisors is an integer number (28968268).

Almost surely, 2^99319772 is an apocalyptic number.

It is an amenable number.

99319772 is a deficient number, since it is larger than the sum of its proper divisors (74489836).

99319772 is a wasteful number, since it uses less digits than its factorization.

99319772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24829947 (or 24829945 counting only the distinct ones).

The product of its digits is 214326, while the sum is 47.

The square root of 99319772 is about 9965.9305636754. The cubic root of 99319772 is about 463.1040417277.

The spelling of 99319772 in words is "ninety-nine million, three hundred nineteen thousand, seven hundred seventy-two".