2987863 has 2 divisors, whose sum is σ = 2987864. Its totient is φ = 2987862.

The previous prime is 2987857. The next prime is 2987911. The reversal of 2987863 is 3687892.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2987863 - 2¹³ = 2979671 is a prime.

2987863 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2987843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1493931 + 1493932.

It is an arithmetic number, because the mean of its divisors is an integer number (1493932).

2^2987863 is an apocalyptic number.

2987863 is a deficient number, since it is larger than the sum of its proper divisors (1).

2987863 is an equidigital number, since it uses as much as digits as its factorization.

2987863 is an evil number, because the sum of its binary digits is even.

The product of its digits is 145152, while the sum is 43.

The square root of 2987863 is about 1728.5436066238. The cubic root of 2987863 is about 144.0301987848.

The spelling of 2987863 in words is "two million, nine hundred eighty-seven thousand, eight hundred sixty-three".