117395869 has 2 divisors, whose sum is σ = 117395870. Its totient is φ = 117395868.

The previous prime is 117395849. The next prime is 117395909. The reversal of 117395869 is 968593711.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 71995225 + 45400644 = 8485^2 + 6738^2 .

It is a cyclic number.

It is not a de Polignac number, because 117395869 - 2²¹ = 115298717 is a prime.

It is a super-2 number, since 2×117395869² = 27563580116530322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (117395809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58697934 + 58697935.

It is an arithmetic number, because the mean of its divisors is an integer number (58697935).

Almost surely, 2^117395869 is an apocalyptic number.

It is an amenable number.

117395869 is a deficient number, since it is larger than the sum of its proper divisors (1).

117395869 is an equidigital number, since it uses as much as digits as its factorization.

117395869 is an evil number, because the sum of its binary digits is even.

The product of its digits is 408240, while the sum is 49.

The square root of 117395869 is about 10834.9374248308. The cubic root of 117395869 is about 489.6483232528.

It can be divided in two parts, 11739 and 5869, that multiplied together give a triangular number (68896191 = T₁₁₇₃₈).

The spelling of 117395869 in words is "one hundred seventeen million, three hundred ninety-five thousand, eight hundred sixty-nine".