3681907 has 8 divisors (see below), whose sum is σ = 3808512. Its totient is φ = 3556800.

The previous prime is 3681889. The next prime is 3681917. The reversal of 3681907 is 7091863.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3681907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3681917) 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, 6807 + ... + 7327.

It is an arithmetic number, because the mean of its divisors is an integer number (476064).

Almost surely, 2^3681907 is an apocalyptic number.

3681907 is a gapful number since it is divisible by the number (37) formed by its first and last digit.

3681907 is a deficient number, since it is larger than the sum of its proper divisors (126605).

3681907 is a wasteful number, since it uses less digits than its factorization.

3681907 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 749.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 3681907 is about 1918.8295911831. The cubic root of 3681907 is about 154.4155164187.

The spelling of 3681907 in words is "three million, six hundred eighty-one thousand, nine hundred seven".