117892 has 6 divisors (see below), whose sum is σ = 206318. Its totient is φ = 58944.

The previous prime is 117889. The next prime is 117899. The reversal of 117892 is 298711.

It can be written as a sum of positive squares in only one way, i.e., 87616 + 30276 = 296^2 + 174^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 117892.

It is not an unprimeable number, because it can be changed into a prime (117899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14733 + ... + 14740.

2¹¹⁷⁸⁹² is an apocalyptic number.

It is an amenable number.

117892 is a deficient number, since it is larger than the sum of its proper divisors (88426).

117892 is a wasteful number, since it uses less digits than its factorization.

117892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29477 (or 29475 counting only the distinct ones).

The product of its digits is 1008, while the sum is 28.

The square root of 117892 is about 343.3540446827. The cubic root of 117892 is about 49.0337127432.

The spelling of 117892 in words is "one hundred seventeen thousand, eight hundred ninety-two".