3681347 has 4 divisors (see below), whose sum is σ = 3808320. Its totient is φ = 3554376.

The previous prime is 3681341. The next prime is 3681371. The reversal of 3681347 is 7431863.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7431863 = 283 ⋅26261.

It is a cyclic number.

It is not a de Polignac number, because 3681347 - 2⁶ = 3681283 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3681341) 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, 63443 + ... + 63500.

It is an arithmetic number, because the mean of its divisors is an integer number (952080).

Almost surely, 2^3681347 is an apocalyptic number.

3681347 is a deficient number, since it is larger than the sum of its proper divisors (126973).

3681347 is a wasteful number, since it uses less digits than its factorization.

3681347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126972.

The product of its digits is 12096, while the sum is 32.

The square root of 3681347 is about 1918.6836633484. The cubic root of 3681347 is about 154.4076874075.

The spelling of 3681347 in words is "three million, six hundred eighty-one thousand, three hundred forty-seven".