117991600 has 30 divisors (see below), whose sum is σ = 283475780. Its totient is φ = 47196480.

The previous prime is 117991597. The next prime is 117991603. The reversal of 117991600 is 6199711.

It is an interprime number because it is at equal distance from previous prime (117991597) and next prime (117991603).

It is not an unprimeable number, because it can be changed into a prime (117991603) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 147090 + ... + 147889.

Almost surely, 2^117991600 is an apocalyptic number.

117991600 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

117991600 is an abundant number, since it is smaller than the sum of its proper divisors (165484180).

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

117991600 is a wasteful number, since it uses less digits than its factorization.

117991600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294997 (or 294986 counting only the distinct ones).

The product of its (nonzero) digits is 3402, while the sum is 34.

The square root of 117991600 is about 10862.3938429795. The cubic root of 117991600 is about 490.4751742061.

The spelling of 117991600 in words is "one hundred seventeen million, nine hundred ninety-one thousand, six hundred".