3956523 has 4 divisors (see below), whose sum is σ = 5275368. Its totient is φ = 2637680.

The previous prime is 3956509. The next prime is 3956543. The reversal of 3956523 is 3256593.

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

It is a cyclic number.

It is not a de Polignac number, because 3956523 - 2¹⁰ = 3955499 is a prime.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (3956543) 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, 659418 + ... + 659423.

It is an arithmetic number, because the mean of its divisors is an integer number (1318842).

Almost surely, 2^3956523 is an apocalyptic number.

3956523 is a deficient number, since it is larger than the sum of its proper divisors (1318845).

3956523 is a wasteful number, since it uses less digits than its factorization.

3956523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1318844.

The product of its digits is 24300, while the sum is 33.

The square root of 3956523 is about 1989.1010532399. The cubic root of 3956523 is about 158.1628801539.

The spelling of 3956523 in words is "three million, nine hundred fifty-six thousand, five hundred twenty-three".