2042863 has 2 divisors, whose sum is σ = 2042864. Its totient is φ = 2042862.

The previous prime is 2042857. The next prime is 2042891. The reversal of 2042863 is 3682402.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2042863 - 2¹³ = 2034671 is a prime.

It is equal to p₁₅₁₉₀₉ and since 2042863 and 151909 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2042813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1021431 + 1021432.

It is an arithmetic number, because the mean of its divisors is an integer number (1021432).

2^2042863 is an apocalyptic number.

2042863 is a deficient number, since it is larger than the sum of its proper divisors (1).

2042863 is an equidigital number, since it uses as much as digits as its factorization.

2042863 is an evil number, because the sum of its binary digits is even.

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

The square root of 2042863 is about 1429.2875847778. The cubic root of 2042863 is about 126.8858171434.

The spelling of 2042863 in words is "two million, forty-two thousand, eight hundred sixty-three".