117887670 has 32 divisors (see below), whose sum is σ = 314367840. Its totient is φ = 31436640.

The previous prime is 117887659. The next prime is 117887717. The reversal of 117887670 is 76788711.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 218041 + ... + 218580.

It is an arithmetic number, because the mean of its divisors is an integer number (9823995).

Almost surely, 2^117887670 is an apocalyptic number.

117887670 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

117887670 is an abundant number, since it is smaller than the sum of its proper divisors (196480170).

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

117887670 is a wasteful number, since it uses less digits than its factorization.

117887670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 436637 (or 436631 counting only the distinct ones).

The product of its (nonzero) digits is 131712, while the sum is 45.

The square root of 117887670 is about 10857.6088527815. The cubic root of 117887670 is about 490.3311242373.

The spelling of 117887670 in words is "one hundred seventeen million, eight hundred eighty-seven thousand, six hundred seventy".