117891683 has 8 divisors (see below), whose sum is σ = 145097568. Its totient is φ = 93276864.

The previous prime is 117891677. The next prime is 117891689. The reversal of 117891683 is 386198711.

It is an interprime number because it is at equal distance from previous prime (117891677) and next prime (117891689).

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 117891683 - 2⁸ = 117891427 is a prime.

It is not an unprimeable number, because it can be changed into a prime (117891689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 647666 + ... + 647847.

It is an arithmetic number, because the mean of its divisors is an integer number (18137196).

Almost surely, 2^117891683 is an apocalyptic number.

117891683 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

117891683 is a deficient number, since it is larger than the sum of its proper divisors (27205885).

117891683 is a wasteful number, since it uses less digits than its factorization.

117891683 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1295533.

The product of its digits is 72576, while the sum is 44.

The square root of 117891683 is about 10857.7936524876. The cubic root of 117891683 is about 490.3366879417.

The spelling of 117891683 in words is "one hundred seventeen million, eight hundred ninety-one thousand, six hundred eighty-three".