2871825 has 36 divisors (see below), whose sum is σ = 5269008. Its totient is φ = 1368800.

The previous prime is 2871811. The next prime is 2871833. The reversal of 2871825 is 5281782.

It is not a de Polignac number, because 2871825 - 2⁶ = 2871761 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 48646 + ... + 48704.

2^2871825 is an apocalyptic number.

2871825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2871825 is a deficient number, since it is larger than the sum of its proper divisors (2397183).

2871825 is a wasteful number, since it uses less digits than its factorization.

2871825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142 (or 78 counting only the distinct ones).

The product of its digits is 8960, while the sum is 33.

The square root of 2871825 is about 1694.6459807287. The cubic root of 2871825 is about 142.1409860736.

Multiplying 2871825 by its sum of digits (33), we get a square (94770225 = 9735²).

2871825 divided by its sum of digits (33) gives a square (87025 = 295²).

It can be divided in two parts, 287 and 1825, that added together give a palindrome (2112).

The spelling of 2871825 in words is "two million, eight hundred seventy-one thousand, eight hundred twenty-five".