3956687 has 4 divisors (see below), whose sum is σ = 4521936. Its totient is φ = 3391440.

The previous prime is 3956681. The next prime is 3956737. The reversal of 3956687 is 7866593.

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 3956687 - 2⁴ = 3956671 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3956681) 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, 282614 + ... + 282627.

It is an arithmetic number, because the mean of its divisors is an integer number (1130484).

Almost surely, 2^3956687 is an apocalyptic number.

3956687 is a deficient number, since it is larger than the sum of its proper divisors (565249).

3956687 is an equidigital number, since it uses as much as digits as its factorization.

3956687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 565248.

The product of its digits is 272160, while the sum is 44.

The square root of 3956687 is about 1989.1422774653. The cubic root of 3956687 is about 158.1650654358.

The spelling of 3956687 in words is "three million, nine hundred fifty-six thousand, six hundred eighty-seven".