117397761 has 8 divisors (see below), whose sum is σ = 168571200. Its totient is φ = 72244752.

The previous prime is 117397757. The next prime is 117397769. The reversal of 117397761 is 167793711.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 117397761 - 2² = 117397757 is a prime.

It is not an unprimeable number, because it can be changed into a prime (117397769) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1505061 + ... + 1505138.

It is an arithmetic number, because the mean of its divisors is an integer number (21071400).

Almost surely, 2^117397761 is an apocalyptic number.

It is an amenable number.

117397761 is a deficient number, since it is larger than the sum of its proper divisors (51173439).

117397761 is a wasteful number, since it uses less digits than its factorization.

117397761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3010215.

The product of its digits is 55566, while the sum is 42.

The square root of 117397761 is about 10835.0247346280. The cubic root of 117397761 is about 489.6509536964.

The spelling of 117397761 in words is "one hundred seventeen million, three hundred ninety-seven thousand, seven hundred sixty-one".