99192387 has 16 divisors (see below), whose sum is σ = 152974080. Its totient is φ = 55997472.

The previous prime is 99192377. The next prime is 99192389. The reversal of 99192387 is 78329199.

It is not a de Polignac number, because 99192387 - 2⁴ = 99192371 is a prime.

It is not an unprimeable number, because it can be changed into a prime (99192389) 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, 26712 + ... + 30197.

It is an arithmetic number, because the mean of its divisors is an integer number (9560880).

Almost surely, 2^99192387 is an apocalyptic number.

99192387 is a deficient number, since it is larger than the sum of its proper divisors (53781693).

99192387 is a wasteful number, since it uses less digits than its factorization.

99192387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57002.

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

The square root of 99192387 is about 9959.5374892612. The cubic root of 99192387 is about 462.9059685549.

The spelling of 99192387 in words is "ninety-nine million, one hundred ninety-two thousand, three hundred eighty-seven".