3657541 has 4 divisors (see below), whose sum is σ = 3671712. Its totient is φ = 3643372.

The previous prime is 3657539. The next prime is 3657547. The reversal of 3657541 is 1457563.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3657541 - 2¹ = 3657539 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3657547) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6691 + ... + 7216.

It is an arithmetic number, because the mean of its divisors is an integer number (917928).

Almost surely, 2^3657541 is an apocalyptic number.

It is an amenable number.

3657541 is a deficient number, since it is larger than the sum of its proper divisors (14171).

3657541 is a wasteful number, since it uses less digits than its factorization.

3657541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14170.

The product of its digits is 12600, while the sum is 31.

The square root of 3657541 is about 1912.4698690437. The cubic root of 3657541 is about 154.0741336444.

The spelling of 3657541 in words is "three million, six hundred fifty-seven thousand, five hundred forty-one".