99617732 has 6 divisors (see below), whose sum is σ = 174331038. Its totient is φ = 49808864.

The previous prime is 99617729. The next prime is 99617737. The reversal of 99617732 is 23771699.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 92467456 + 7150276 = 9616^2 + 2674^2 .

It is not an unprimeable number, because it can be changed into a prime (99617737) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12452213 + ... + 12452220.

It is an arithmetic number, because the mean of its divisors is an integer number (29055173).

Almost surely, 2^99617732 is an apocalyptic number.

It is an amenable number.

99617732 is a deficient number, since it is larger than the sum of its proper divisors (74713306).

99617732 is a wasteful number, since it uses less digits than its factorization.

99617732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24904437 (or 24904435 counting only the distinct ones).

The product of its digits is 142884, while the sum is 44.

The square root of 99617732 is about 9980.8682989007. The cubic root of 99617732 is about 463.5666844967.

The spelling of 99617732 in words is "ninety-nine million, six hundred seventeen thousand, seven hundred thirty-two".