99189372 has 24 divisors (see below), whose sum is σ = 231656656. Its totient is φ = 33032448.

The previous prime is 99189371. The next prime is 99189379. The reversal of 99189372 is 27398199.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99189371) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12378 + ... + 18750.

Almost surely, 2^99189372 is an apocalyptic number.

It is an amenable number.

99189372 is an abundant number, since it is smaller than the sum of its proper divisors (132467284).

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

99189372 is a wasteful number, since it uses less digits than its factorization.

99189372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7677 (or 7675 counting only the distinct ones).

The product of its digits is 244944, while the sum is 48.

The square root of 99189372 is about 9959.3861256606. The cubic root of 99189372 is about 462.9012784246.

The spelling of 99189372 in words is "ninety-nine million, one hundred eighty-nine thousand, three hundred seventy-two".