117902 has 8 divisors (see below), whose sum is σ = 178416. Its totient is φ = 58432.

The previous prime is 117899. The next prime is 117911. The reversal of 117902 is 209711.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 158 + ... + 510.

It is an arithmetic number, because the mean of its divisors is an integer number (22302).

2¹¹⁷⁹⁰² is an apocalyptic number.

117902 is a deficient number, since it is larger than the sum of its proper divisors (60514).

117902 is a wasteful number, since it uses less digits than its factorization.

117902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 522.

The product of its (nonzero) digits is 126, while the sum is 20.

The square root of 117902 is about 343.3686066023. The cubic root of 117902 is about 49.0350991060.

Subtracting 117902 from its reverse (209711), we obtain a square (91809 = 303²).

The spelling of 117902 in words is "one hundred seventeen thousand, nine hundred two".