117402993 has 8 divisors (see below), whose sum is σ = 173930400. Its totient is φ = 78268644.

The previous prime is 117402977. The next prime is 117403019. The reversal of 117402993 is 399204711.

It is not a de Polignac number, because 117402993 - 2⁴ = 117402977 is a prime.

It is not an unprimeable number, because it can be changed into a prime (117402913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2174103 + ... + 2174156.

It is an arithmetic number, because the mean of its divisors is an integer number (21741300).

Almost surely, 2^117402993 is an apocalyptic number.

It is an amenable number.

117402993 is a deficient number, since it is larger than the sum of its proper divisors (56527407).

117402993 is an equidigital number, since it uses as much as digits as its factorization.

117402993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4348268 (or 4348262 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 36.

The square root of 117402993 is about 10835.2661711653. The cubic root of 117402993 is about 489.6582275880.

The spelling of 117402993 in words is "one hundred seventeen million, four hundred two thousand, nine hundred ninety-three".