99931248 has 30 divisors (see below), whose sum is σ = 279669104. Its totient is φ = 33310368.

The previous prime is 99931231. The next prime is 99931261. The reversal of 99931248 is 84213999.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 346840 + ... + 347127.

Almost surely, 2^99931248 is an apocalyptic number.

It is an amenable number.

99931248 is an abundant number, since it is smaller than the sum of its proper divisors (179737856).

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

99931248 is a wasteful number, since it uses less digits than its factorization.

99931248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 693981 (or 693972 counting only the distinct ones).

The product of its digits is 139968, while the sum is 45.

The square root of 99931248 is about 9996.5618089421. The cubic root of 99931248 is about 464.0524861356.

The spelling of 99931248 in words is "ninety-nine million, nine hundred thirty-one thousand, two hundred forty-eight".