2979863 has 2 divisors, whose sum is σ = 2979864. Its totient is φ = 2979862.

The previous prime is 2979841. The next prime is 2979877. The reversal of 2979863 is 3689792.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2979863 - 2¹⁴ = 2963479 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2979833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1489931 + 1489932.

It is an arithmetic number, because the mean of its divisors is an integer number (1489932).

2^2979863 is an apocalyptic number.

2979863 is a deficient number, since it is larger than the sum of its proper divisors (1).

2979863 is an equidigital number, since it uses as much as digits as its factorization.

2979863 is an evil number, because the sum of its binary digits is even.

The product of its digits is 163296, while the sum is 44.

The square root of 2979863 is about 1726.2279687226. The cubic root of 2979863 is about 143.9015369845.

The spelling of 2979863 in words is "two million, nine hundred seventy-nine thousand, eight hundred sixty-three".