3681910 has 16 divisors (see below), whose sum is σ = 6753456. Its totient is φ = 1444768.

The previous prime is 3681889. The next prime is 3681917. The reversal of 3681910 is 191863.

It is a happy number.

It is a super-2 number, since 2×3681910² = 27112922496200, which contains 22 as substring.

It is a congruent 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, 2944 + ... + 4003.

It is an arithmetic number, because the mean of its divisors is an integer number (422091).

Almost surely, 2^3681910 is an apocalyptic number.

3681910 is a deficient number, since it is larger than the sum of its proper divisors (3071546).

3681910 is a wasteful number, since it uses less digits than its factorization.

3681910 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7007.

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 3681910 is about 1918.8303729095. The cubic root of 3681910 is about 154.4155583577.

It can be divided in two parts, 368 and 1910, that added together give a triangular number (2278 = T₆₇).

The spelling of 3681910 in words is "three million, six hundred eighty-one thousand, nine hundred ten".