2891875 has 20 divisors (see below), whose sum is σ = 4136176. Its totient is φ = 1980000.

The previous prime is 2891831. The next prime is 2891891. The reversal of 2891875 is 5781982.

It is a de Polignac number, because none of the positive numbers 2^k-2891875 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

2891875 is a lucky number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 4045 + ... + 4705.

2^2891875 is an apocalyptic number.

2891875 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2891875 is a deficient number, since it is larger than the sum of its proper divisors (1244301).

2891875 is an frugal number, since it uses more digits than its factorization.

2891875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 688 (or 673 counting only the distinct ones).

The product of its digits is 40320, while the sum is 40.

The square root of 2891875 is about 1700.5513811702. The cubic root of 2891875 is about 142.4710108261.

The spelling of 2891875 in words is "two million, eight hundred ninety-one thousand, eight hundred seventy-five".