117690539 has 4 divisors (see below), whose sum is σ = 121487040. Its totient is φ = 113894040.

The previous prime is 117690511. The next prime is 117690557. The reversal of 117690539 is 935096711.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 935096711 = 4019 ⋅232669.

It is a cyclic number.

It is not a de Polignac number, because 117690539 - 2⁸ = 117690283 is a prime.

It is a super-2 number, since 2×117690539² = 27702125940221042, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 117690496 and 117690505.

It is not an unprimeable number, because it can be changed into a prime (117690569) 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 3 ways as a sum of consecutive naturals, for example, 1898204 + ... + 1898265.

It is an arithmetic number, because the mean of its divisors is an integer number (30371760).

Almost surely, 2^117690539 is an apocalyptic number.

117690539 is a deficient number, since it is larger than the sum of its proper divisors (3796501).

117690539 is an equidigital number, since it uses as much as digits as its factorization.

117690539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3796500.

The product of its (nonzero) digits is 51030, while the sum is 41.

The square root of 117690539 is about 10848.5270428755. The cubic root of 117690539 is about 490.0576622409.

The spelling of 117690539 in words is "one hundred seventeen million, six hundred ninety thousand, five hundred thirty-nine".