3123871 has 8 divisors (see below), whose sum is σ = 3218544. Its totient is φ = 3030720.

The previous prime is 3123863. The next prime is 3123881. The reversal of 3123871 is 1783213.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3123871 - 2³ = 3123863 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 (3123881) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4755 + ... + 5371.

It is an arithmetic number, because the mean of its divisors is an integer number (402318).

Almost surely, 2^3123871 is an apocalyptic number.

3123871 is a deficient number, since it is larger than the sum of its proper divisors (94673).

3123871 is an equidigital number, since it uses as much as digits as its factorization.

3123871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 761.

The product of its digits is 1008, while the sum is 25.

The square root of 3123871 is about 1767.4475946969. The cubic root of 3123871 is about 146.1832783045.

The spelling of 3123871 in words is "three million, one hundred twenty-three thousand, eight hundred seventy-one".