117879660 has 72 divisors (see below), whose sum is σ = 360019296. Its totient is φ = 31219200.

The previous prime is 117879659. The next prime is 117879677. The reversal of 117879660 is 66978711.

It is a super-2 number, since 2×117879660² = 27791228483431200, which contains 22 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25012 + ... + 29348.

It is an arithmetic number, because the mean of its divisors is an integer number (5000268).

Almost surely, 2^117879660 is an apocalyptic number.

117879660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 117879660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (180009648).

117879660 is an abundant number, since it is smaller than the sum of its proper divisors (242139636).

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

117879660 is a wasteful number, since it uses less digits than its factorization.

117879660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4503 (or 4498 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 45.

The square root of 117879660 is about 10857.2399807686. The cubic root of 117879660 is about 490.3200186335.

The spelling of 117879660 in words is "one hundred seventeen million, eight hundred seventy-nine thousand, six hundred sixty".