3732661 has 2 divisors, whose sum is σ = 3732662. Its totient is φ = 3732660.

The previous prime is 3732653. The next prime is 3732691. The reversal of 3732661 is 1662373.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2232036 + 1500625 = 1494^2 + 1225^2 .

It is a cyclic number.

It is not a de Polignac number, because 3732661 - 2³ = 3732653 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3732691) 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 as a sum of consecutive naturals, namely, 1866330 + 1866331.

It is an arithmetic number, because the mean of its divisors is an integer number (1866331).

Almost surely, 2^3732661 is an apocalyptic number.

It is an amenable number.

3732661 is a deficient number, since it is larger than the sum of its proper divisors (1).

3732661 is an equidigital number, since it uses as much as digits as its factorization.

3732661 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4536, while the sum is 28.

The square root of 3732661 is about 1932.0095755456. The cubic root of 3732661 is about 155.1218050535.

The spelling of 3732661 in words is "three million, seven hundred thirty-two thousand, six hundred sixty-one".