117285769 has 2 divisors, whose sum is σ = 117285770. Its totient is φ = 117285768.

The previous prime is 117285757. The next prime is 117285799. The reversal of 117285769 is 967582711.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 62599744 + 54686025 = 7912^2 + 7395^2 .

It is a cyclic number.

It is not a de Polignac number, because 117285769 - 2²³ = 108897161 is a prime.

It is a super-2 number, since 2×117285769² = 27511903219842722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (117285709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58642884 + 58642885.

It is an arithmetic number, because the mean of its divisors is an integer number (58642885).

Almost surely, 2^117285769 is an apocalyptic number.

It is an amenable number.

117285769 is a deficient number, since it is larger than the sum of its proper divisors (1).

117285769 is an equidigital number, since it uses as much as digits as its factorization.

117285769 is an evil number, because the sum of its binary digits is even.

The product of its digits is 211680, while the sum is 46.

The square root of 117285769 is about 10829.8554468654. The cubic root of 117285769 is about 489.4952027528.

The spelling of 117285769 in words is "one hundred seventeen million, two hundred eighty-five thousand, seven hundred sixty-nine".