2871023 has 4 divisors (see below), whose sum is σ = 2874960. Its totient is φ = 2867088.

The previous prime is 2871019. The next prime is 2871031. The reversal of 2871023 is 3201782.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3201782 = 2 ⋅1600891.

It is a cyclic number.

It is not a de Polignac number, because 2871023 - 2² = 2871019 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 2871023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2871013) 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, 518 + ... + 2451.

It is an arithmetic number, because the mean of its divisors is an integer number (718740).

2^2871023 is an apocalyptic number.

2871023 is a deficient number, since it is larger than the sum of its proper divisors (3937).

2871023 is an equidigital number, since it uses as much as digits as its factorization.

2871023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3936.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 2871023 is about 1694.4093366126. The cubic root of 2871023 is about 142.1277531777.

The spelling of 2871023 in words is "two million, eight hundred seventy-one thousand, twenty-three".