99892139 has 8 divisors (see below), whose sum is σ = 107595840. Its totient is φ = 92433096.

The previous prime is 99892129. The next prime is 99892141. The reversal of 99892139 is 93129899.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 99892139 - 2⁴ = 99892123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99892129) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 60317 + ... + 61950.

It is an arithmetic number, because the mean of its divisors is an integer number (13449480).

Almost surely, 2^99892139 is an apocalyptic number.

99892139 is a deficient number, since it is larger than the sum of its proper divisors (7703701).

99892139 is a wasteful number, since it uses less digits than its factorization.

99892139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122329.

The product of its digits is 314928, while the sum is 50.

The square root of 99892139 is about 9994.6054949658. The cubic root of 99892139 is about 463.9919411873.

The spelling of 99892139 in words is "ninety-nine million, eight hundred ninety-two thousand, one hundred thirty-nine".