117787266 has 12 divisors (see below), whose sum is σ = 255205782. Its totient is φ = 39262416.

The previous prime is 117787261. The next prime is 117787283. The reversal of 117787266 is 662787711.

It can be written as a sum of positive squares in only one way, i.e., 103612041 + 14175225 = 10179^2 + 3765^2 .

It is not an unprimeable number, because it can be changed into a prime (117787261) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3271851 + ... + 3271886.

Almost surely, 2^117787266 is an apocalyptic number.

117787266 is an abundant number, since it is smaller than the sum of its proper divisors (137418516).

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

117787266 is a wasteful number, since it uses less digits than its factorization.

117787266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6543745 (or 6543742 counting only the distinct ones).

The product of its digits is 197568, while the sum is 45.

The square root of 117787266 is about 10852.9841979061. The cubic root of 117787266 is about 490.1918809802.

It can be divided in two parts, 11778 and 7266, that added together give a square (19044 = 138²).

The spelling of 117787266 in words is "one hundred seventeen million, seven hundred eighty-seven thousand, two hundred sixty-six".