3657538 has 16 divisors (see below), whose sum is σ = 5976000. Its totient is φ = 1672272.

The previous prime is 3657527. The next prime is 3657539. The reversal of 3657538 is 8357563.

It is a junction number, because it is equal to n+sod(n) for n = 3657497 and 3657506.

It is not an unprimeable number, because it can be changed into a prime (3657539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 558 + ... + 2761.

It is an arithmetic number, because the mean of its divisors is an integer number (373500).

Almost surely, 2^3657538 is an apocalyptic number.

3657538 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

3657538 is a deficient number, since it is larger than the sum of its proper divisors (2318462).

3657538 is a wasteful number, since it uses less digits than its factorization.

3657538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3369.

The product of its digits is 75600, while the sum is 37.

The square root of 3657538 is about 1912.4690847174. The cubic root of 3657538 is about 154.0740915194.

The spelling of 3657538 in words is "three million, six hundred fifty-seven thousand, five hundred thirty-eight".