117769427 has 2 divisors, whose sum is σ = 117769428. Its totient is φ = 117769426.

The previous prime is 117769417. The next prime is 117769529. The reversal of 117769427 is 724967711.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 117769427 - 2⁴ = 117769411 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (117769417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58884713 + 58884714.

It is an arithmetic number, because the mean of its divisors is an integer number (58884714).

Almost surely, 2^117769427 is an apocalyptic number.

117769427 is a deficient number, since it is larger than the sum of its proper divisors (1).

117769427 is an equidigital number, since it uses as much as digits as its factorization.

117769427 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 148176, while the sum is 44.

The square root of 117769427 is about 10852.1623190957. The cubic root of 117769427 is about 490.1671330462.

The spelling of 117769427 in words is "one hundred seventeen million, seven hundred sixty-nine thousand, four hundred twenty-seven".