117676813 has 2 divisors, whose sum is σ = 117676814. Its totient is φ = 117676812.

The previous prime is 117676787. The next prime is 117676829. The reversal of 117676813 is 318676711.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 112933129 + 4743684 = 10627^2 + 2178^2 .

It is a cyclic number.

It is not a de Polignac number, because 117676813 - 2¹⁷ = 117545741 is a prime.

It is equal to p_6716857 and since 117676813 and 6716857 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (117676213) 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, 58838406 + 58838407.

It is an arithmetic number, because the mean of its divisors is an integer number (58838407).

Almost surely, 2^117676813 is an apocalyptic number.

It is an amenable number.

117676813 is a deficient number, since it is larger than the sum of its proper divisors (1).

117676813 is an equidigital number, since it uses as much as digits as its factorization.

117676813 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 42336, while the sum is 40.

The square root of 117676813 is about 10847.8944039846. The cubic root of 117676813 is about 490.0386100355.

The spelling of 117676813 in words is "one hundred seventeen million, six hundred seventy-six thousand, eight hundred thirteen".