99027972 has 72 divisors (see below), whose sum is σ = 262953600. Its totient is φ = 31363200.

The previous prime is 99027967. The next prime is 99027989. The reversal of 99027972 is 27972099.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 164472 + ... + 165072.

Almost surely, 2^99027972 is an apocalyptic number.

99027972 is a gapful number since it is divisible by the number (92) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 99027972, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (131476800).

99027972 is an abundant number, since it is smaller than the sum of its proper divisors (163925628).

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

99027972 is a wasteful number, since it uses less digits than its factorization.

99027972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 833 (or 828 counting only the distinct ones).

The product of its (nonzero) digits is 142884, while the sum is 45.

The square root of 99027972 is about 9951.2799176789. The cubic root of 99027972 is about 462.6500659369.

It can be divided in two parts, 99027 and 972, that added together give a palindrome (99999).

The spelling of 99027972 in words is "ninety-nine million, twenty-seven thousand, nine hundred seventy-two".