117339779 has 2 divisors, whose sum is σ = 117339780. Its totient is φ = 117339778.

The previous prime is 117339773. The next prime is 117339791. The reversal of 117339779 is 977933711.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 117339779 - 2¹⁶ = 117274243 is a prime.

It is a Sophie Germain prime.

It is equal to p_6698729 and since 117339779 and 6698729 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (117339773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58669889 + 58669890.

It is an arithmetic number, because the mean of its divisors is an integer number (58669890).

Almost surely, 2^117339779 is an apocalyptic number.

117339779 is a deficient number, since it is larger than the sum of its proper divisors (1).

117339779 is an equidigital number, since it uses as much as digits as its factorization.

117339779 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 250047, while the sum is 47.

The square root of 117339779 is about 10832.3487296154. The cubic root of 117339779 is about 489.5703286014.

It can be divided in two parts, 11733 and 9779, that added together give a palindrome (21512).

The spelling of 117339779 in words is "one hundred seventeen million, three hundred thirty-nine thousand, seven hundred seventy-nine".