2873987 has 4 divisors (see below), whose sum is σ = 2973120. Its totient is φ = 2774856.

The previous prime is 2873953. The next prime is 2873989. The reversal of 2873987 is 7893782.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2873987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2873989) 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, 49523 + ... + 49580.

It is an arithmetic number, because the mean of its divisors is an integer number (743280).

2^2873987 is an apocalyptic number.

2873987 is a deficient number, since it is larger than the sum of its proper divisors (99133).

2873987 is an equidigital number, since it uses as much as digits as its factorization.

2873987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99132.

The product of its digits is 169344, while the sum is 44.

The square root of 2873987 is about 1695.2837520604. The cubic root of 2873987 is about 142.1766465249.

The spelling of 2873987 in words is "two million, eight hundred seventy-three thousand, nine hundred eighty-seven".