117972473 has 2 divisors, whose sum is σ = 117972474. Its totient is φ = 117972472.

The previous prime is 117972433. The next prime is 117972499. The reversal of 117972473 is 374279711.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 62141689 + 55830784 = 7883^2 + 7472^2 .

It is a cyclic number.

It is not a de Polignac number, because 117972473 - 2⁶ = 117972409 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 117972473.

It is not a weakly prime, because it can be changed into another prime (117972403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58986236 + 58986237.

It is an arithmetic number, because the mean of its divisors is an integer number (58986237).

Almost surely, 2^117972473 is an apocalyptic number.

It is an amenable number.

117972473 is a deficient number, since it is larger than the sum of its proper divisors (1).

117972473 is an equidigital number, since it uses as much as digits as its factorization.

117972473 is an evil number, because the sum of its binary digits is even.

The product of its digits is 74088, while the sum is 41.

The square root of 117972473 is about 10861.5133844230. The cubic root of 117972473 is about 490.4486699871.

The spelling of 117972473 in words is "one hundred seventeen million, nine hundred seventy-two thousand, four hundred seventy-three".