3681207 has 12 divisors (see below), whose sum is σ = 5514600. Its totient is φ = 2453976.

The previous prime is 3681199. The next prime is 3681217. The reversal of 3681207 is 7021863.

It is not a de Polignac number, because 3681207 - 2³ = 3681199 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3681217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7332 + ... + 7817.

It is an arithmetic number, because the mean of its divisors is an integer number (459550).

Almost surely, 2^3681207 is an apocalyptic number.

3681207 is a deficient number, since it is larger than the sum of its proper divisors (1833393).

3681207 is an equidigital number, since it uses as much as digits as its factorization.

3681207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15164 (or 15152 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 3681207 is about 1918.6471796555. The cubic root of 3681207 is about 154.4057300307.

The spelling of 3681207 in words is "three million, six hundred eighty-one thousand, two hundred seven".