7117312 has 20 divisors (see below), whose sum is σ = 14221746. Its totient is φ = 3558400.

The previous prime is 7117303. The next prime is 7117337. The reversal of 7117312 is 2137117.

It can be written as a sum of positive squares in only one way, i.e., 5089536 + 2027776 = 2256^2 + 1424^2 .

It is a super-2 number, since 2×7117312² = 101312260210688, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6439 + ... + 7462.

Almost surely, 2^7117312 is an apocalyptic number.

It is an amenable number.

7117312 is a deficient number, since it is larger than the sum of its proper divisors (7104434).

7117312 is an equidigital number, since it uses as much as digits as its factorization.

7117312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13919 (or 13903 counting only the distinct ones).

The product of its digits is 294, while the sum is 22.

The square root of 7117312 is about 2667.8290799824. The cubic root of 7117312 is about 192.3558216520.

The spelling of 7117312 in words is "seven million, one hundred seventeen thousand, three hundred twelve".