117662247 has 8 divisors (see below), whose sum is σ = 174314480. Its totient is φ = 78441480.

The previous prime is 117662243. The next prime is 117662297. The reversal of 117662247 is 742266711.

It is not a de Polignac number, because 117662247 - 2² = 117662243 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 (117662243) 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, 2178904 + ... + 2178957.

It is an arithmetic number, because the mean of its divisors is an integer number (21789310).

Almost surely, 2^117662247 is an apocalyptic number.

117662247 is a deficient number, since it is larger than the sum of its proper divisors (56652233).

117662247 is an equidigital number, since it uses as much as digits as its factorization.

117662247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4357870 (or 4357864 counting only the distinct ones).

The product of its digits is 28224, while the sum is 36.

The square root of 117662247 is about 10847.2230086783. The cubic root of 117662247 is about 490.0183902580.

The spelling of 117662247 in words is "one hundred seventeen million, six hundred sixty-two thousand, two hundred forty-seven".