117592991 has 8 divisors (see below), whose sum is σ = 118714224. Its totient is φ = 116475840.

The previous prime is 117592967. The next prime is 117593011. The reversal of 117592991 is 199295711.

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 117592991 - 2²⁶ = 50484127 is a prime.

It is a super-2 number, since 2×117592991² = 27656223064652162, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117592901) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99836 + ... + 101006.

It is an arithmetic number, because the mean of its divisors is an integer number (14839278).

Almost surely, 2^117592991 is an apocalyptic number.

117592991 is a deficient number, since it is larger than the sum of its proper divisors (1121233).

117592991 is a wasteful number, since it uses less digits than its factorization.

117592991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2041.

The product of its digits is 51030, while the sum is 44.

The square root of 117592991 is about 10844.0302009908. The cubic root of 117592991 is about 489.9222297787.

The spelling of 117592991 in words is "one hundred seventeen million, five hundred ninety-two thousand, nine hundred ninety-one".