117899407 has 2 divisors, whose sum is σ = 117899408. Its totient is φ = 117899406.

The previous prime is 117899399. The next prime is 117899423. The reversal of 117899407 is 704998711.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 117899407 - 2³ = 117899399 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (117899207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58949703 + 58949704.

It is an arithmetic number, because the mean of its divisors is an integer number (58949704).

Almost surely, 2^117899407 is an apocalyptic number.

117899407 is a deficient number, since it is larger than the sum of its proper divisors (1).

117899407 is an equidigital number, since it uses as much as digits as its factorization.

117899407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 127008, while the sum is 46.

The square root of 117899407 is about 10858.1493358675. The cubic root of 117899407 is about 490.3473962964.

The spelling of 117899407 in words is "one hundred seventeen million, eight hundred ninety-nine thousand, four hundred seven".