117377479 has 2 divisors, whose sum is σ = 117377480. Its totient is φ = 117377478.

The previous prime is 117377467. The next prime is 117377483. The reversal of 117377479 is 974773711.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 117377479 - 2²¹ = 115280327 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (117377419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58688739 + 58688740.

It is an arithmetic number, because the mean of its divisors is an integer number (58688740).

Almost surely, 2^117377479 is an apocalyptic number.

117377479 is a deficient number, since it is larger than the sum of its proper divisors (1).

117377479 is an equidigital number, since it uses as much as digits as its factorization.

117377479 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 259308, while the sum is 46.

The square root of 117377479 is about 10834.0887480212. The cubic root of 117377479 is about 489.6227542018.

The spelling of 117377479 in words is "one hundred seventeen million, three hundred seventy-seven thousand, four hundred seventy-nine".