117793639 has 2 divisors, whose sum is σ = 117793640. Its totient is φ = 117793638.

The previous prime is 117793633. The next prime is 117793657. The reversal of 117793639 is 936397711.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 117793639 - 2¹⁵ = 117760871 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (117793633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58896819 + 58896820.

It is an arithmetic number, because the mean of its divisors is an integer number (58896820).

Almost surely, 2^117793639 is an apocalyptic number.

117793639 is a deficient number, since it is larger than the sum of its proper divisors (1).

117793639 is an equidigital number, since it uses as much as digits as its factorization.

117793639 is an evil number, because the sum of its binary digits is even.

The product of its digits is 214326, while the sum is 46.

The square root of 117793639 is about 10853.2777998170. The cubic root of 117793639 is about 490.2007215977.

The spelling of 117793639 in words is "one hundred seventeen million, seven hundred ninety-three thousand, six hundred thirty-nine".