3709637 has 4 divisors (see below), whose sum is σ = 3717036. Its totient is φ = 3702240.

The previous prime is 3709633. The next prime is 3709661. The reversal of 3709637 is 7369073.

3709637 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 519841 + 3189796 = 721^2 + 1786^2 .

It is a cyclic number.

It is not a de Polignac number, because 3709637 - 2² = 3709633 is a prime.

It is a super-2 number, since 2×3709637² = 27522813343538, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3709597 and 3709606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3709631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2888 + ... + 3969.

It is an arithmetic number, because the mean of its divisors is an integer number (929259).

Almost surely, 2^3709637 is an apocalyptic number.

It is an amenable number.

3709637 is a deficient number, since it is larger than the sum of its proper divisors (7399).

3709637 is an equidigital number, since it uses as much as digits as its factorization.

3709637 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7398.

The product of its (nonzero) digits is 23814, while the sum is 35.

The square root of 3709637 is about 1926.0417960159. The cubic root of 3709637 is about 154.8022034731.

The spelling of 3709637 in words is "three million, seven hundred nine thousand, six hundred thirty-seven".