3562661 has 2 divisors, whose sum is σ = 3562662. Its totient is φ = 3562660.

The previous prime is 3562651. The next prime is 3562681. The reversal of 3562661 is 1662653.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2660161 + 902500 = 1631^2 + 950^2 .

It is an emirp because it is prime and its reverse (1662653) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3562661 is a prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3562651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1781330 + 1781331.

It is an arithmetic number, because the mean of its divisors is an integer number (1781331).

Almost surely, 2^3562661 is an apocalyptic number.

It is an amenable number.

3562661 is a deficient number, since it is larger than the sum of its proper divisors (1).

3562661 is an equidigital number, since it uses as much as digits as its factorization.

3562661 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6480, while the sum is 29.

The square root of 3562661 is about 1887.5012582777. The cubic root of 3562661 is about 152.7301693152.

The spelling of 3562661 in words is "three million, five hundred sixty-two thousand, six hundred sixty-one".