3691444 has 6 divisors (see below), whose sum is σ = 6460034. Its totient is φ = 1845720.

The previous prime is 3691403. The next prime is 3691447. The reversal of 3691444 is 4441963.

3691444 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 2280100 + 1411344 = 1510^2 + 1188^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3691447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 461427 + ... + 461434.

Almost surely, 2^3691444 is an apocalyptic number.

It is an amenable number.

3691444 is a deficient number, since it is larger than the sum of its proper divisors (2768590).

3691444 is a wasteful number, since it uses less digits than its factorization.

3691444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 922865 (or 922863 counting only the distinct ones).

The product of its digits is 10368, while the sum is 31.

The square root of 3691444 is about 1921.3130926530. The cubic root of 3691444 is about 154.5487255678.

The spelling of 3691444 in words is "three million, six hundred ninety-one thousand, four hundred forty-four".