2420863 has 2 divisors, whose sum is σ = 2420864. Its totient is φ = 2420862.

The previous prime is 2420849. The next prime is 2420867. The reversal of 2420863 is 3680242.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2420863 - 2¹³ = 2412671 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2420867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1210431 + 1210432.

It is an arithmetic number, because the mean of its divisors is an integer number (1210432).

2^2420863 is an apocalyptic number.

2420863 is a deficient number, since it is larger than the sum of its proper divisors (1).

2420863 is an equidigital number, since it uses as much as digits as its factorization.

2420863 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 2420863 is about 1555.9122725912. The cubic root of 2420863 is about 134.2734262506.

The spelling of 2420863 in words is "two million, four hundred twenty thousand, eight hundred sixty-three".