99205839 has 24 divisors (see below), whose sum is σ = 149292000. Its totient is φ = 63403200.

The previous prime is 99205819. The next prime is 99205853. The reversal of 99205839 is 93850299.

It is not a de Polignac number, because 99205839 - 2⁵ = 99205807 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 99205794 and 99205803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99205819) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 37614 + ... + 40164.

It is an arithmetic number, because the mean of its divisors is an integer number (6220500).

Almost surely, 2^99205839 is an apocalyptic number.

99205839 is a deficient number, since it is larger than the sum of its proper divisors (50086161).

99205839 is a wasteful number, since it uses less digits than its factorization.

99205839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2735 (or 2732 counting only the distinct ones).

The product of its (nonzero) digits is 174960, while the sum is 45.

The square root of 99205839 is about 9960.2127989316. The cubic root of 99205839 is about 462.9268933113.

The spelling of 99205839 in words is "ninety-nine million, two hundred five thousand, eight hundred thirty-nine".