117920910 has 32 divisors (see below), whose sum is σ = 283751712. Its totient is φ = 31363200.

The previous prime is 117920909. The next prime is 117920911. The reversal of 117920910 is 19029711.

It is an interprime number because it is at equal distance from previous prime (117920909) and next prime (117920911).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117920911) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 6960 + ... + 16860.

It is an arithmetic number, because the mean of its divisors is an integer number (8867241).

Almost surely, 2^117920910 is an apocalyptic number.

117920910 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

117920910 is an abundant number, since it is smaller than the sum of its proper divisors (165830802).

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

117920910 is a wasteful number, since it uses less digits than its factorization.

117920910 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10308.

The product of its (nonzero) digits is 1134, while the sum is 30.

The square root of 117920910 is about 10859.1394686688. The cubic root of 117920910 is about 490.3772050387.

The spelling of 117920910 in words is "one hundred seventeen million, nine hundred twenty thousand, nine hundred ten".