1117172 has 24 divisors (see below), whose sum is σ = 2366784. Its totient is φ = 450432.

The previous prime is 1117169. The next prime is 1117177. The reversal of 1117172 is 2717111.

1117172 is nontrivially palindromic in base 5.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1117177) 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, 698 + ... + 1649.

It is an arithmetic number, because the mean of its divisors is an integer number (98616).

2^1117172 is an apocalyptic number.

It is an amenable number.

1117172 is an abundant number, since it is smaller than the sum of its proper divisors (1249612).

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

1117172 is a wasteful number, since it uses less digits than its factorization.

1117172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2375 (or 2373 counting only the distinct ones).

The product of its digits is 98, while the sum is 20.

The square root of 1117172 is about 1056.9635755313. The cubic root of 1117172 is about 103.7624013821.

The spelling of 1117172 in words is "one million, one hundred seventeen thousand, one hundred seventy-two".