99992397 has 16 divisors (see below), whose sum is σ = 136183680. Its totient is φ = 65237952.

The previous prime is 99992381. The next prime is 99992401. The reversal of 99992397 is 79329999.

It is not a de Polignac number, because 99992397 - 2⁴ = 99992381 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99992797) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 112288 + ... + 113174.

It is an arithmetic number, because the mean of its divisors is an integer number (8511480).

Almost surely, 2^99992397 is an apocalyptic number.

It is an amenable number.

99992397 is a deficient number, since it is larger than the sum of its proper divisors (36191283).

99992397 is a wasteful number, since it uses less digits than its factorization.

99992397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1652.

The product of its digits is 2480058, while the sum is 57.

The square root of 99992397 is about 9999.6198427740. The cubic root of 99992397 is about 464.1471197298.

The spelling of 99992397 in words is "ninety-nine million, nine hundred ninety-two thousand, three hundred ninety-seven".