3697506 has 12 divisors (see below), whose sum is σ = 8011302. Its totient is φ = 1232496.

The previous prime is 3697487. The next prime is 3697511. The reversal of 3697506 is 6057963.

It is a happy number.

3697506 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 2576025 + 1121481 = 1605^2 + 1059^2 .

It is a Curzon number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 102691 + ... + 102726.

Almost surely, 2^3697506 is an apocalyptic number.

3697506 is an abundant number, since it is smaller than the sum of its proper divisors (4313796).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3697506 is a wasteful number, since it uses less digits than its factorization.

3697506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205425 (or 205422 counting only the distinct ones).

The product of its (nonzero) digits is 34020, while the sum is 36.

The square root of 3697506 is about 1922.8900124552. The cubic root of 3697506 is about 154.6332780269.

It can be divided in two parts, 369 and 7506, that added together give a triangular number (7875 = T₁₂₅).

The spelling of 3697506 in words is "three million, six hundred ninety-seven thousand, five hundred six".