3662657 has 2 divisors, whose sum is σ = 3662658. Its totient is φ = 3662656.

The previous prime is 3662651. The next prime is 3662683. The reversal of 3662657 is 7562663.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3083536 + 579121 = 1756^2 + 761^2 .

It is an emirp because it is prime and its reverse (7562663) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3662657 - 2⁴ = 3662641 is a prime.

It is not a weakly prime, because it can be changed into another prime (3662651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1831328 + 1831329.

It is an arithmetic number, because the mean of its divisors is an integer number (1831329).

Almost surely, 2^3662657 is an apocalyptic number.

It is an amenable number.

3662657 is a deficient number, since it is larger than the sum of its proper divisors (1).

3662657 is an equidigital number, since it uses as much as digits as its factorization.

3662657 is an evil number, because the sum of its binary digits is even.

The product of its digits is 45360, while the sum is 35.

The square root of 3662657 is about 1913.8069390615. The cubic root of 3662657 is about 154.1459374450.

The spelling of 3662657 in words is "three million, six hundred sixty-two thousand, six hundred fifty-seven".