3730649 has 4 divisors (see below), whose sum is σ = 4017636. Its totient is φ = 3443664.

The previous prime is 3730619. The next prime is 3730651. The reversal of 3730649 is 9460373.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1281424 + 2449225 = 1132^2 + 1565^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3730649 is a prime.

It is a super-2 number, since 2×3730649² = 27835483922402, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3730619) 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 in 3 ways as a sum of consecutive naturals, for example, 143474 + ... + 143499.

It is an arithmetic number, because the mean of its divisors is an integer number (1004409).

Almost surely, 2^3730649 is an apocalyptic number.

It is an amenable number.

3730649 is a deficient number, since it is larger than the sum of its proper divisors (286987).

3730649 is a wasteful number, since it uses less digits than its factorization.

3730649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286986.

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

The square root of 3730649 is about 1931.4888040059. The cubic root of 3730649 is about 155.0939285006.

The spelling of 3730649 in words is "three million, seven hundred thirty thousand, six hundred forty-nine".