2987843 has 2 divisors, whose sum is σ = 2987844. Its totient is φ = 2987842.

The previous prime is 2987839. The next prime is 2987849. The reversal of 2987843 is 3487892.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2987843 - 2² = 2987839 is a prime.

It is an Ulam number.

It is a d-powerful number, because it can be written as 2⁷ + 9³ + 8³ + 7⁷ + 8⁷ + 4⁸ + 3⁵ .

It is a self number, because there is not a number n which added to its sum of digits gives 2987843.

It is not a weakly prime, because it can be changed into another prime (2987849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1493921 + 1493922.

It is an arithmetic number, because the mean of its divisors is an integer number (1493922).

2^2987843 is an apocalyptic number.

2987843 is a deficient number, since it is larger than the sum of its proper divisors (1).

2987843 is an equidigital number, since it uses as much as digits as its factorization.

2987843 is an evil number, because the sum of its binary digits is even.

The product of its digits is 96768, while the sum is 41.

The square root of 2987843 is about 1728.5378213970. The cubic root of 2987843 is about 144.0298774168.

The spelling of 2987843 in words is "two million, nine hundred eighty-seven thousand, eight hundred forty-three".