3171897 has 12 divisors (see below), whose sum is σ = 4607460. Its totient is φ = 2102688.

The previous prime is 3171893. The next prime is 3171913. The reversal of 3171897 is 7981713.

It can be written as a sum of positive squares in 2 ways, for example, as 3059001 + 112896 = 1749^2 + 336^2 .

It is not a de Polignac number, because 3171897 - 2² = 3171893 is a prime.

3171897 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3171893) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 879 + ... + 2667.

It is an arithmetic number, because the mean of its divisors is an integer number (383955).

Almost surely, 2^3171897 is an apocalyptic number.

It is an amenable number.

3171897 is a deficient number, since it is larger than the sum of its proper divisors (1435563).

3171897 is a wasteful number, since it uses less digits than its factorization.

3171897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1992 (or 1989 counting only the distinct ones).

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

The square root of 3171897 is about 1780.9820324753. The cubic root of 3171897 is about 146.9286061757.

The spelling of 3171897 in words is "three million, one hundred seventy-one thousand, eight hundred ninety-seven".