117669431 has 4 divisors (see below), whose sum is σ = 128366664. Its totient is φ = 106972200.

The previous prime is 117669401. The next prime is 117669493. The reversal of 117669431 is 134966711.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 117669431 - 2¹⁴ = 117653047 is a prime.

It is a super-2 number, since 2×117669431² = 27692189983727522, 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 (117669401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5348600 + ... + 5348621.

It is an arithmetic number, because the mean of its divisors is an integer number (32091666).

Almost surely, 2^117669431 is an apocalyptic number.

117669431 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

117669431 is a deficient number, since it is larger than the sum of its proper divisors (10697233).

117669431 is a wasteful number, since it uses less digits than its factorization.

117669431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10697232.

The product of its digits is 27216, while the sum is 38.

The square root of 117669431 is about 10847.5541482861. The cubic root of 117669431 is about 490.0283629285.

It can be divided in two parts, 1176 and 69431, that added together give a palindrome (70607).

The spelling of 117669431 in words is "one hundred seventeen million, six hundred sixty-nine thousand, four hundred thirty-one".