117021738 has 8 divisors (see below), whose sum is σ = 234043488. Its totient is φ = 39007244.

The previous prime is 117021719. The next prime is 117021763. The reversal of 117021738 is 837120711.

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

117021738 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9751806 + ... + 9751817.

It is an arithmetic number, because the mean of its divisors is an integer number (29255436).

Almost surely, 2^117021738 is an apocalyptic number.

117021738 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

117021738 is a wasteful number, since it uses less digits than its factorization.

117021738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19503628.

The product of its (nonzero) digits is 2352, while the sum is 30.

The square root of 117021738 is about 10817.6586191283. The cubic root of 117021738 is about 489.1276133667.

The spelling of 117021738 in words is "one hundred seventeen million, twenty-one thousand, seven hundred thirty-eight".