117277765 has 8 divisors (see below), whose sum is σ = 153527328. Its totient is φ = 85292880.

The previous prime is 117277763. The next prime is 117277777. The reversal of 117277765 is 567772711.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 117277765 - 2¹ = 117277763 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117277763) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1066107 + ... + 1066216.

It is an arithmetic number, because the mean of its divisors is an integer number (19190916).

Almost surely, 2^117277765 is an apocalyptic number.

It is an amenable number.

117277765 is a deficient number, since it is larger than the sum of its proper divisors (36249563).

117277765 is a wasteful number, since it uses less digits than its factorization.

117277765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2132339.

The product of its digits is 144060, while the sum is 43.

The square root of 117277765 is about 10829.4859065424. The cubic root of 117277765 is about 489.4840675322.

The spelling of 117277765 in words is "one hundred seventeen million, two hundred seventy-seven thousand, seven hundred sixty-five".