99992173 has 2 divisors, whose sum is σ = 99992174. Its totient is φ = 99992172.

The previous prime is 99992161. The next prime is 99992209. The reversal of 99992173 is 37129999.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 99740169 + 252004 = 9987^2 + 502^2 .

It is a cyclic number.

It is not a de Polignac number, because 99992173 - 2⁵ = 99992141 is a prime.

It is a super-2 number, since 2×99992173² = 19996869322523858, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99992773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49996086 + 49996087.

It is an arithmetic number, because the mean of its divisors is an integer number (49996087).

Almost surely, 2^99992173 is an apocalyptic number.

It is an amenable number.

99992173 is a deficient number, since it is larger than the sum of its proper divisors (1).

99992173 is an equidigital number, since it uses as much as digits as its factorization.

99992173 is an evil number, because the sum of its binary digits is even.

The product of its digits is 275562, while the sum is 49.

The square root of 99992173 is about 9999.6086423420. The cubic root of 99992173 is about 464.1467731400.

The spelling of 99992173 in words is "ninety-nine million, nine hundred ninety-two thousand, one hundred seventy-three".