117493489 has 2 divisors, whose sum is σ = 117493490. Its totient is φ = 117493488.

The previous prime is 117493457. The next prime is 117493513. The reversal of 117493489 is 984394711.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 116812864 + 680625 = 10808^2 + 825^2 .

It is an emirp because it is prime and its reverse (984394711) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 117493489 - 2⁵ = 117493457 is a prime.

It is not a weakly prime, because it can be changed into another prime (117493429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58746744 + 58746745.

It is an arithmetic number, because the mean of its divisors is an integer number (58746745).

Almost surely, 2^117493489 is an apocalyptic number.

It is an amenable number.

117493489 is a deficient number, since it is larger than the sum of its proper divisors (1).

117493489 is an equidigital number, since it uses as much as digits as its factorization.

117493489 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 217728, while the sum is 46.

The square root of 117493489 is about 10839.4413601440. The cubic root of 117493489 is about 489.7840072614.

The spelling of 117493489 in words is "one hundred seventeen million, four hundred ninety-three thousand, four hundred eighty-nine".