3667391 has 16 divisors (see below), whose sum is σ = 4558848. Its totient is φ = 2872800.

The previous prime is 3667387. The next prime is 3667429. The reversal of 3667391 is 1937663.

It is not a de Polignac number, because 3667391 - 2² = 3667387 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3667091) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17276 + ... + 17486.

It is an arithmetic number, because the mean of its divisors is an integer number (284928).

Almost surely, 2^3667391 is an apocalyptic number.

3667391 is a deficient number, since it is larger than the sum of its proper divisors (891457).

3667391 is a wasteful number, since it uses less digits than its factorization.

3667391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 422.

The product of its digits is 20412, while the sum is 35.

The square root of 3667391 is about 1915.0433415461. The cubic root of 3667391 is about 154.2123202833.

The spelling of 3667391 in words is "three million, six hundred sixty-seven thousand, three hundred ninety-one".