3657957 has 8 divisors (see below), whose sum is σ = 4944384. Its totient is φ = 2405088.

The previous prime is 3657949. The next prime is 3657959. The reversal of 3657957 is 7597563.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3657957 - 2³ = 3657949 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3657959) 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, 8133 + ... + 8570.

It is an arithmetic number, because the mean of its divisors is an integer number (618048).

Almost surely, 2^3657957 is an apocalyptic number.

It is an amenable number.

3657957 is a deficient number, since it is larger than the sum of its proper divisors (1286427).

3657957 is a wasteful number, since it uses less digits than its factorization.

3657957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16779.

The product of its digits is 198450, while the sum is 42.

The square root of 3657957 is about 1912.5786258348. The cubic root of 3657957 is about 154.0799747646.

The spelling of 3657957 in words is "three million, six hundred fifty-seven thousand, nine hundred fifty-seven".