117926399 has 4 divisors (see below), whose sum is σ = 124863264. Its totient is φ = 110989536.

The previous prime is 117926377. The next prime is 117926401. The reversal of 117926399 is 993629711.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 993629711 = 41 ⋅24234871.

It is a cyclic number.

It is not a de Polignac number, because 117926399 - 2⁸ = 117926143 is a prime.

It is a super-2 number, since 2×117926399² = 27813271162214402, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117926329) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3468407 + ... + 3468440.

It is an arithmetic number, because the mean of its divisors is an integer number (31215816).

Almost surely, 2^117926399 is an apocalyptic number.

117926399 is a deficient number, since it is larger than the sum of its proper divisors (6936865).

117926399 is an equidigital number, since it uses as much as digits as its factorization.

117926399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6936864.

The product of its digits is 183708, while the sum is 47.

The square root of 117926399 is about 10859.3922021446. The cubic root of 117926399 is about 490.3848136376.

The spelling of 117926399 in words is "one hundred seventeen million, nine hundred twenty-six thousand, three hundred ninety-nine".