3960637 has 4 divisors (see below), whose sum is σ = 4035420. Its totient is φ = 3885856.

The previous prime is 3960631. The next prime is 3960667. The reversal of 3960637 is 7360693.

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 2268036 + 1692601 = 1506^2 + 1301^2 .

It is a cyclic number.

It is not a de Polignac number, because 3960637 - 2¹¹ = 3958589 is a prime.

3960637 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3960631) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37312 + ... + 37417.

It is an arithmetic number, because the mean of its divisors is an integer number (1008855).

Almost surely, 2^3960637 is an apocalyptic number.

It is an amenable number.

3960637 is a deficient number, since it is larger than the sum of its proper divisors (74783).

3960637 is an equidigital number, since it uses as much as digits as its factorization.

3960637 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74782.

The product of its (nonzero) digits is 20412, while the sum is 34.

The square root of 3960637 is about 1990.1349200494. The cubic root of 3960637 is about 158.2176805171.

Subtracting from 3960637 its product of nonzero digits (20412), we obtain a square (3940225 = 1985²).

The spelling of 3960637 in words is "three million, nine hundred sixty thousand, six hundred thirty-seven".