3956537 has 4 divisors (see below), whose sum is σ = 4260900. Its totient is φ = 3652176.

The previous prime is 3956509. The next prime is 3956543. The reversal of 3956537 is 7356593.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7356593 = 683 ⋅10771.

It can be written as a sum of positive squares in 2 ways, for example, as 2446096 + 1510441 = 1564^2 + 1229^2 .

It is a cyclic number.

It is not a de Polignac number, because 3956537 - 2¹⁸ = 3694393 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3956537.

It is not an unprimeable number, because it can be changed into a prime (3956587) 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, 152162 + ... + 152187.

It is an arithmetic number, because the mean of its divisors is an integer number (1065225).

Almost surely, 2^3956537 is an apocalyptic number.

It is an amenable number.

3956537 is a deficient number, since it is larger than the sum of its proper divisors (304363).

3956537 is a wasteful number, since it uses less digits than its factorization.

3956537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304362.

The product of its digits is 85050, while the sum is 38.

The square root of 3956537 is about 1989.1045724144. The cubic root of 3956537 is about 158.1630667047.

The spelling of 3956537 in words is "three million, nine hundred fifty-six thousand, five hundred thirty-seven".