117457998 has 96 divisors (see below), whose sum is σ = 294306048. Its totient is φ = 31046400.

The previous prime is 117457973. The next prime is 117458009. The reversal of 117457998 is 899754711.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a self number, because there is not a number n which added to its sum of digits gives 117457998.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 354693 + ... + 355023.

It is an arithmetic number, because the mean of its divisors is an integer number (3065688).

Almost surely, 2^117457998 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 117457998, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (147153024).

117457998 is an abundant number, since it is smaller than the sum of its proper divisors (176848050).

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

117457998 is a wasteful number, since it uses less digits than its factorization.

117457998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 438 (or 431 counting only the distinct ones).

The product of its digits is 635040, while the sum is 51.

The square root of 117457998 is about 10837.8041133802. The cubic root of 117457998 is about 489.7346863021.

The spelling of 117457998 in words is "one hundred seventeen million, four hundred fifty-seven thousand, nine hundred ninety-eight".