117351779 has 2 divisors, whose sum is σ = 117351780. Its totient is φ = 117351778.

The previous prime is 117351761. The next prime is 117351797. The reversal of 117351779 is 977153711.

Together with next prime (117351797) it forms an Ormiston pair, because they use the same digits, order apart.

It is a balanced prime because it is at equal distance from previous prime (117351761) and next prime (117351797).

It is a cyclic number.

It is not a de Polignac number, because 117351779 - 2²⁴ = 100574563 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is equal to p_6699362 and since 117351779 and 6699362 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 (117351749) 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, 58675889 + 58675890.

It is an arithmetic number, because the mean of its divisors is an integer number (58675890).

Almost surely, 2^117351779 is an apocalyptic number.

117351779 is a deficient number, since it is larger than the sum of its proper divisors (1).

117351779 is an equidigital number, since it uses as much as digits as its factorization.

117351779 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 46305, while the sum is 41.

The square root of 117351779 is about 10832.9026119503. The cubic root of 117351779 is about 489.5870170133.

The spelling of 117351779 in words is "one hundred seventeen million, three hundred fifty-one thousand, seven hundred seventy-nine".