99281372 has 12 divisors (see below), whose sum is σ = 174108480. Its totient is φ = 49536096.

The previous prime is 99281339. The next prime is 99281383. The reversal of 99281372 is 27318299.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23993 + ... + 27824.

It is an arithmetic number, because the mean of its divisors is an integer number (14509040).

Almost surely, 2^99281372 is an apocalyptic number.

It is an amenable number.

99281372 is a deficient number, since it is larger than the sum of its proper divisors (74827108).

99281372 is a wasteful number, since it uses less digits than its factorization.

99281372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52300 (or 52298 counting only the distinct ones).

The product of its digits is 54432, while the sum is 41.

The square root of 99281372 is about 9964.0038137287. The cubic root of 99281372 is about 463.0443507344.

The spelling of 99281372 in words is "ninety-nine million, two hundred eighty-one thousand, three hundred seventy-two".