3703649 has 2 divisors, whose sum is σ = 3703650. Its totient is φ = 3703648.

The previous prime is 3703643. The next prime is 3703673. The reversal of 3703649 is 9463073.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2689600 + 1014049 = 1640^2 + 1007^2 .

It is an emirp because it is prime and its reverse (9463073) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3703649 - 2⁸ = 3703393 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3703643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1851824 + 1851825.

It is an arithmetic number, because the mean of its divisors is an integer number (1851825).

Almost surely, 2^3703649 is an apocalyptic number.

It is an amenable number.

3703649 is a deficient number, since it is larger than the sum of its proper divisors (1).

3703649 is an equidigital number, since it uses as much as digits as its factorization.

3703649 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13608, while the sum is 32.

The square root of 3703649 is about 1924.4866848071. The cubic root of 3703649 is about 154.7188660470.

The spelling of 3703649 in words is "three million, seven hundred three thousand, six hundred forty-nine".