117961964 has 12 divisors (see below), whose sum is σ = 207197088. Its totient is φ = 58762800.

The previous prime is 117961939. The next prime is 117961967. The reversal of 117961964 is 469169711.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (117961967) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53327 + ... + 55494.

It is an arithmetic number, because the mean of its divisors is an integer number (17266424).

Almost surely, 2^117961964 is an apocalyptic number.

It is an amenable number.

117961964 is a deficient number, since it is larger than the sum of its proper divisors (89235124).

117961964 is a wasteful number, since it uses less digits than its factorization.

117961964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109096 (or 109094 counting only the distinct ones).

The product of its digits is 81648, while the sum is 44.

The square root of 117961964 is about 10861.0296012855. The cubic root of 117961964 is about 490.4341064820.

The spelling of 117961964 in words is "one hundred seventeen million, nine hundred sixty-one thousand, nine hundred sixty-four".