3681197 has 8 divisors (see below), whose sum is σ = 4197816. Its totient is φ = 3197952.

The previous prime is 3681191. The next prime is 3681199. The reversal of 3681197 is 7911863.

It can be written as a sum of positive squares in 4 ways, for example, as 1552516 + 2128681 = 1246^2 + 1459^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3681197 - 2¹² = 3677101 is a prime.

It is a super-2 number, since 2×3681197² = 27102422705618, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3681191) 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, 8108 + ... + 8549.

It is an arithmetic number, because the mean of its divisors is an integer number (524727).

Almost surely, 2^3681197 is an apocalyptic number.

It is an amenable number.

3681197 is a deficient number, since it is larger than the sum of its proper divisors (516619).

3681197 is a wasteful number, since it uses less digits than its factorization.

3681197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16687.

The product of its digits is 9072, while the sum is 35.

The square root of 3681197 is about 1918.6445736509. The cubic root of 3681197 is about 154.4055902161.

The spelling of 3681197 in words is "three million, six hundred eighty-one thousand, one hundred ninety-seven".