117727669 has 4 divisors (see below), whose sum is σ = 124652844. Its totient is φ = 110802496.

The previous prime is 117727663. The next prime is 117727691. The reversal of 117727669 is 966727711.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 966727711 = 22699 ⋅42589.

It can be written as a sum of positive squares in 2 ways, for example, as 36457444 + 81270225 = 6038^2 + 9015^2 .

It is a cyclic number.

It is not a de Polignac number, because 117727669 - 2⁵ = 117727637 is a prime.

It is a super-2 number, since 2×117727669² = 27719608096347122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117727663) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3462562 + ... + 3462595.

It is an arithmetic number, because the mean of its divisors is an integer number (31163211).

Almost surely, 2^117727669 is an apocalyptic number.

It is an amenable number.

117727669 is a deficient number, since it is larger than the sum of its proper divisors (6925175).

117727669 is an equidigital number, since it uses as much as digits as its factorization.

117727669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6925174.

The product of its digits is 222264, while the sum is 46.

The square root of 117727669 is about 10850.2382001503. The cubic root of 117727669 is about 490.1091926584.

It can be divided in two parts, 1177276 and 69, that added together give a triangular number (1177345 = T₁₅₃₄).

The spelling of 117727669 in words is "one hundred seventeen million, seven hundred twenty-seven thousand, six hundred sixty-nine".