117991024 has 20 divisors (see below), whose sum is σ = 236491560. Its totient is φ = 56960960.

The previous prime is 117991021. The next prime is 117991031. The reversal of 117991024 is 420199711.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117991021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 126682 + ... + 127609.

It is an arithmetic number, because the mean of its divisors is an integer number (11824578).

Almost surely, 2^117991024 is an apocalyptic number.

It is an amenable number.

117991024 is an abundant number, since it is smaller than the sum of its proper divisors (118500536).

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

117991024 is a wasteful number, since it uses less digits than its factorization.

117991024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254328 (or 254322 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 34.

The square root of 117991024 is about 10862.3673294545. The cubic root of 117991024 is about 490.4743760867.

The spelling of 117991024 in words is "one hundred seventeen million, nine hundred ninety-one thousand, twenty-four".