117918396 has 24 divisors (see below), whose sum is σ = 305714640. Its totient is φ = 39306096.

The previous prime is 117918373. The next prime is 117918397. The reversal of 117918396 is 693819711.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117918397) 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, 545811 + ... + 546026.

It is an arithmetic number, because the mean of its divisors is an integer number (12738110).

Almost surely, 2^117918396 is an apocalyptic number.

It is an amenable number.

117918396 is an abundant number, since it is smaller than the sum of its proper divisors (187796244).

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

117918396 is a wasteful number, since it uses less digits than its factorization.

117918396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1091850 (or 1091842 counting only the distinct ones).

The product of its digits is 81648, while the sum is 45.

The square root of 117918396 is about 10859.0237130232. The cubic root of 117918396 is about 490.3737201689.

The spelling of 117918396 in words is "one hundred seventeen million, nine hundred eighteen thousand, three hundred ninety-six".