3730561 has 2 divisors, whose sum is σ = 3730562. Its totient is φ = 3730560.

The previous prime is 3730547. The next prime is 3730579. The reversal of 3730561 is 1650373.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2640625 + 1089936 = 1625^2 + 1044^2 .

It is a cyclic number.

It is not a de Polignac number, because 3730561 - 2¹¹ = 3728513 is a prime.

It is not a weakly prime, because it can be changed into another prime (3730541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1865280 + 1865281.

It is an arithmetic number, because the mean of its divisors is an integer number (1865281).

Almost surely, 2^3730561 is an apocalyptic number.

It is an amenable number.

3730561 is a deficient number, since it is larger than the sum of its proper divisors (1).

3730561 is an equidigital number, since it uses as much as digits as its factorization.

3730561 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1890, while the sum is 25.

The square root of 3730561 is about 1931.4660235169. The cubic root of 3730561 is about 155.0927090190.

The spelling of 3730561 in words is "three million, seven hundred thirty thousand, five hundred sixty-one".