99916372 has 6 divisors (see below), whose sum is σ = 174853658. Its totient is φ = 49958184.

The previous prime is 99916337. The next prime is 99916373. The reversal of 99916372 is 27361999.

It can be written as a sum of positive squares in only one way, i.e., 81649296 + 18267076 = 9036^2 + 4274^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99916373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12489543 + ... + 12489550.

Almost surely, 2^99916372 is an apocalyptic number.

It is an amenable number.

99916372 is a deficient number, since it is larger than the sum of its proper divisors (74937286).

99916372 is a wasteful number, since it uses less digits than its factorization.

99916372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24979097 (or 24979095 counting only the distinct ones).

The product of its digits is 183708, while the sum is 46.

The square root of 99916372 is about 9995.8177254290. The cubic root of 99916372 is about 464.0294583457.

It can be divided in two parts, 999 and 16372, that added together give a palindrome (17371).

The spelling of 99916372 in words is "ninety-nine million, nine hundred sixteen thousand, three hundred seventy-two".