3143686 has 32 divisors (see below), whose sum is σ = 6064128. Its totient is φ = 1188000.

The previous prime is 3143671. The next prime is 3143711. The reversal of 3143686 is 6863413.

3143686 = 139² + 140² + ... + 229².

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3811 + ... + 4561.

It is an arithmetic number, because the mean of its divisors is an integer number (189504).

Almost surely, 2^3143686 is an apocalyptic number.

3143686 is a deficient number, since it is larger than the sum of its proper divisors (2920442).

3143686 is a wasteful number, since it uses less digits than its factorization.

3143686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 796.

The product of its digits is 10368, while the sum is 31.

The square root of 3143686 is about 1773.0442746869. The cubic root of 3143686 is about 146.4917117234.

The spelling of 3143686 in words is "three million, one hundred forty-three thousand, six hundred eighty-six".