99392807 has 4 divisors (see below), whose sum is σ = 99417816. Its totient is φ = 99367800.

The previous prime is 99392803. The next prime is 99392869. The reversal of 99392807 is 70829399.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 99392807 - 2² = 99392803 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99392803) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5069 + ... + 14982.

It is an arithmetic number, because the mean of its divisors is an integer number (24854454).

Almost surely, 2^99392807 is an apocalyptic number.

99392807 is a deficient number, since it is larger than the sum of its proper divisors (25009).

99392807 is a wasteful number, since it uses less digits than its factorization.

99392807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25008.

The product of its (nonzero) digits is 244944, while the sum is 47.

The square root of 99392807 is about 9969.5941241356. The cubic root of 99392807 is about 463.2175287533.

The spelling of 99392807 in words is "ninety-nine million, three hundred ninety-two thousand, eight hundred seven".