117865404 has 18 divisors (see below), whose sum is σ = 297937640. Its totient is φ = 39288456.

The previous prime is 117865381. The next prime is 117865411. The reversal of 117865404 is 404568711.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 3274039 = 117865404 / (1 + 1 + 7 + 8 + 6 + 5 + 4 + 0 + 4).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1636984 + ... + 1637055.

Almost surely, 2^117865404 is an apocalyptic number.

It is an amenable number.

117865404 is an abundant number, since it is smaller than the sum of its proper divisors (180072236).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

117865404 is a wasteful number, since it uses less digits than its factorization.

117865404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3274049 (or 3274044 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The square root of 117865404 is about 10856.5834404752. The cubic root of 117865404 is about 490.3002519098.

The spelling of 117865404 in words is "one hundred seventeen million, eight hundred sixty-five thousand, four hundred four".