3143893 has 4 divisors (see below), whose sum is σ = 3280608. Its totient is φ = 3007180.

The previous prime is 3143863. The next prime is 3143897. The reversal of 3143893 is 3983413.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3143893 is a prime.

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 Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3143897) 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, 68323 + ... + 68368.

It is an arithmetic number, because the mean of its divisors is an integer number (820152).

Almost surely, 2^3143893 is an apocalyptic number.

It is an amenable number.

3143893 is a deficient number, since it is larger than the sum of its proper divisors (136715).

3143893 is a wasteful number, since it uses less digits than its factorization.

3143893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136714.

The product of its digits is 7776, while the sum is 31.

The square root of 3143893 is about 1773.1026479028. The cubic root of 3143893 is about 146.4949269638.

The spelling of 3143893 in words is "three million, one hundred forty-three thousand, eight hundred ninety-three".