3656657 has 2 divisors, whose sum is σ = 3656658. Its totient is φ = 3656656.

The previous prime is 3656651. The next prime is 3656663. The reversal of 3656657 is 7566563.

It is a balanced prime because it is at equal distance from previous prime (3656651) and next prime (3656663).

It can be written as a sum of positive squares in only one way, i.e., 3297856 + 358801 = 1816^2 + 599^2 .

It is a cyclic number.

It is not a de Polignac number, because 3656657 - 2⁴ = 3656641 is a prime.

It is a super-2 number, since 2×3656657² = 26742280831298, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3656657.

It is not a weakly prime, because it can be changed into another prime (3656651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1828328 + 1828329.

It is an arithmetic number, because the mean of its divisors is an integer number (1828329).

Almost surely, 2^3656657 is an apocalyptic number.

It is an amenable number.

3656657 is a deficient number, since it is larger than the sum of its proper divisors (1).

3656657 is an equidigital number, since it uses as much as digits as its factorization.

3656657 is an evil number, because the sum of its binary digits is even.

The product of its digits is 113400, while the sum is 38.

The square root of 3656657 is about 1912.2387403251. The cubic root of 3656657 is about 154.0617197933.

The spelling of 3656657 in words is "three million, six hundred fifty-six thousand, six hundred fifty-seven".