117439885 has 4 divisors (see below), whose sum is σ = 140927868. Its totient is φ = 93951904.

The previous prime is 117439877. The next prime is 117439897. The reversal of 117439885 is 588934711.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 28590409 + 88849476 = 5347^2 + 9426^2 .

It is a cyclic number.

It is not a de Polignac number, because 117439885 - 2³ = 117439877 is a prime.

It is a Duffinian number.

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, 11743984 + ... + 11743993.

It is an arithmetic number, because the mean of its divisors is an integer number (35231967).

Almost surely, 2^117439885 is an apocalyptic number.

It is an amenable number.

117439885 is a deficient number, since it is larger than the sum of its proper divisors (23487983).

117439885 is an equidigital number, since it uses as much as digits as its factorization.

117439885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23487982.

The product of its digits is 241920, while the sum is 46.

The square root of 117439885 is about 10836.9684414046. The cubic root of 117439885 is about 489.7095112876.

The spelling of 117439885 in words is "one hundred seventeen million, four hundred thirty-nine thousand, eight hundred eighty-five".