117772644 has 48 divisors (see below), whose sum is σ = 300960576. Its totient is φ = 35548800.

The previous prime is 117772643. The next prime is 117772649. The reversal of 117772644 is 446277711.

It is not an unprimeable number, because it can be changed into a prime (117772643) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34954 + ... + 38174.

It is an arithmetic number, because the mean of its divisors is an integer number (6270012).

Almost surely, 2^117772644 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 117772644, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (150480288).

117772644 is an abundant number, since it is smaller than the sum of its proper divisors (183187932).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

117772644 is a wasteful number, since it uses less digits than its factorization.

117772644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3516 (or 3514 counting only the distinct ones).

The product of its digits is 65856, while the sum is 39.

The square root of 117772644 is about 10852.3105373925. The cubic root of 117772644 is about 490.1715961550.

The spelling of 117772644 in words is "one hundred seventeen million, seven hundred seventy-two thousand, six hundred forty-four".