117998449 has 2 divisors, whose sum is σ = 117998450. Its totient is φ = 117998448.

The previous prime is 117998393. The next prime is 117998453. The reversal of 117998449 is 944899711.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 64240225 + 53758224 = 8015^2 + 7332^2 .

It is a cyclic number.

It is not a de Polignac number, because 117998449 - 2¹⁷ = 117867377 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 117998396 and 117998405.

It is not a weakly prime, because it can be changed into another prime (117990449) 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, 58999224 + 58999225.

It is an arithmetic number, because the mean of its divisors is an integer number (58999225).

Almost surely, 2^117998449 is an apocalyptic number.

It is an amenable number.

117998449 is a deficient number, since it is larger than the sum of its proper divisors (1).

117998449 is an equidigital number, since it uses as much as digits as its factorization.

117998449 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 653184, while the sum is 52.

The square root of 117998449 is about 10862.7091004040. The cubic root of 117998449 is about 490.4846641457.

The spelling of 117998449 in words is "one hundred seventeen million, nine hundred ninety-eight thousand, four hundred forty-nine".