117646780 has 12 divisors (see below), whose sum is σ = 247058280. Its totient is φ = 47058704.

The previous prime is 117646769. The next prime is 117646799. The reversal of 117646780 is 87646711.

It is a congruent number.

It is an unprimeable number.

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, 2941150 + ... + 2941189.

It is an arithmetic number, because the mean of its divisors is an integer number (20588190).

Almost surely, 2^117646780 is an apocalyptic number.

117646780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

117646780 is an abundant number, since it is smaller than the sum of its proper divisors (129411500).

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

117646780 is a wasteful number, since it uses less digits than its factorization.

117646780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5882348 (or 5882346 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 40.

The square root of 117646780 is about 10846.5100377956. The cubic root of 117646780 is about 489.9969179315.

The spelling of 117646780 in words is "one hundred seventeen million, six hundred forty-six thousand, seven hundred eighty".