99992169 has 12 divisors (see below), whose sum is σ = 145537392. Its totient is φ = 66151800.

The previous prime is 99992161. The next prime is 99992173. The reversal of 99992169 is 96129999.

It is a happy number.

It is not a de Polignac number, because 99992169 - 2³ = 99992161 is a prime.

It is a super-2 number, since 2×99992169² = 19996867722649122, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (99992161) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 41227 + ... + 43584.

It is an arithmetic number, because the mean of its divisors is an integer number (12128116).

Almost surely, 2^99992169 is an apocalyptic number.

It is an amenable number.

99992169 is a deficient number, since it is larger than the sum of its proper divisors (45545223).

99992169 is a wasteful number, since it uses less digits than its factorization.

99992169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84948 (or 84945 counting only the distinct ones).

The product of its digits is 708588, while the sum is 54.

The square root of 99992169 is about 9999.6084423341. The cubic root of 99992169 is about 464.1467669509.

The spelling of 99992169 in words is "ninety-nine million, nine hundred ninety-two thousand, one hundred sixty-nine".