3667557 has 12 divisors (see below), whose sum is σ = 5114144. Its totient is φ = 2337720.

The previous prime is 3667553. The next prime is 3667561. The reversal of 3667557 is 7557663.

It is an interprime number because it is at equal distance from previous prime (3667553) and next prime (3667561).

It is not a de Polignac number, because 3667557 - 2² = 3667553 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3667553) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 432 + ... + 2742.

Almost surely, 2^3667557 is an apocalyptic number.

It is an amenable number.

3667557 is a deficient number, since it is larger than the sum of its proper divisors (1446587).

3667557 is a wasteful number, since it uses less digits than its factorization.

3667557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2360 (or 2337 counting only the distinct ones).

The product of its digits is 132300, while the sum is 39.

The square root of 3667557 is about 1915.0866821113. The cubic root of 3667557 is about 154.2146469926.

It can be divided in two parts, 3667 and 557, that added together give a palindrome (4224).

The spelling of 3667557 in words is "three million, six hundred sixty-seven thousand, five hundred fifty-seven".