117884731 has 2 divisors, whose sum is σ = 117884732. Its totient is φ = 117884730.

The previous prime is 117884659. The next prime is 117884743. The reversal of 117884731 is 137488711.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 117884731 - 2¹⁹ = 117360443 is a prime.

It is a super-2 number, since 2×117884731² = 27793619605884722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (117884761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58942365 + 58942366.

It is an arithmetic number, because the mean of its divisors is an integer number (58942366).

Almost surely, 2^117884731 is an apocalyptic number.

117884731 is a deficient number, since it is larger than the sum of its proper divisors (1).

117884731 is an equidigital number, since it uses as much as digits as its factorization.

117884731 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 37632, while the sum is 40.

The square root of 117884731 is about 10857.4735090628. The cubic root of 117884731 is about 490.3270494680.

The spelling of 117884731 in words is "one hundred seventeen million, eight hundred eighty-four thousand, seven hundred thirty-one".