3197986 has 16 divisors (see below), whose sum is σ = 5321088. Its totient is φ = 1429200.

The previous prime is 3197983. The next prime is 3198007. The reversal of 3197986 is 6897913.

It is a super-2 number, since 2×3197986² = 20454228912392, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3197983) 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, 151 + ... + 2533.

It is an arithmetic number, because the mean of its divisors is an integer number (332568).

Almost surely, 2^3197986 is an apocalyptic number.

3197986 is a deficient number, since it is larger than the sum of its proper divisors (2123102).

3197986 is a wasteful number, since it uses less digits than its factorization.

3197986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2457.

The product of its digits is 81648, while the sum is 43.

The square root of 3197986 is about 1788.2913632851. The cubic root of 3197986 is about 147.3303382933.

The spelling of 3197986 in words is "three million, one hundred ninety-seven thousand, nine hundred eighty-six".