3681337 has 4 divisors (see below), whose sum is σ = 4016016. Its totient is φ = 3346660.

The previous prime is 3681319. The next prime is 3681341. The reversal of 3681337 is 7331863.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3681337 - 2¹¹ = 3679289 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3681299 and 3681308.

It is not an unprimeable number, because it can be changed into a prime (3681037) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 167323 + ... + 167344.

It is an arithmetic number, because the mean of its divisors is an integer number (1004004).

Almost surely, 2^3681337 is an apocalyptic number.

It is an amenable number.

3681337 is a deficient number, since it is larger than the sum of its proper divisors (334679).

3681337 is a wasteful number, since it uses less digits than its factorization.

3681337 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334678.

The product of its digits is 9072, while the sum is 31.

The square root of 3681337 is about 1918.6810573933. The cubic root of 3681337 is about 154.4075475965.

The spelling of 3681337 in words is "three million, six hundred eighty-one thousand, three hundred thirty-seven".