3117897 has 6 divisors (see below), whose sum is σ = 4503642. Its totient is φ = 2078592.

The previous prime is 3117889. The next prime is 3117899. The reversal of 3117897 is 7987113.

It can be written as a sum of positive squares in only one way, i.e., 1838736 + 1279161 = 1356^2 + 1131^2 .

It is not a de Polignac number, because 3117897 - 2³ = 3117889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3117899) 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, 173208 + ... + 173225.

It is an arithmetic number, because the mean of its divisors is an integer number (750607).

Almost surely, 2^3117897 is an apocalyptic number.

It is an amenable number.

3117897 is a deficient number, since it is larger than the sum of its proper divisors (1385745).

3117897 is a wasteful number, since it uses less digits than its factorization.

3117897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 346439 (or 346436 counting only the distinct ones).

The product of its digits is 10584, while the sum is 36.

The square root of 3117897 is about 1765.7567782682. The cubic root of 3117897 is about 146.0900332903.

The spelling of 3117897 in words is "three million, one hundred seventeen thousand, eight hundred ninety-seven".