442803863 has 2 divisors, whose sum is σ = 442803864. Its totient is φ = 442803862.

The previous prime is 442803841. The next prime is 442803877. The reversal of 442803863 is 368308244.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 442803863 - 2⁶ = 442803799 is a prime.

It is a super-2 number, since 2×442803863² = 392150522175445538, which contains 22 as substring.

It is equal to p_23491757 and since 442803863 and 23491757 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 (442803833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221401931 + 221401932.

It is an arithmetic number, because the mean of its divisors is an integer number (221401932).

Almost surely, 2^442803863 is an apocalyptic number.

442803863 is a deficient number, since it is larger than the sum of its proper divisors (1).

442803863 is an equidigital number, since it uses as much as digits as its factorization.

442803863 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 110592, while the sum is 38.

The square root of 442803863 is about 21042.9052889567. The cubic root of 442803863 is about 762.2026721433.

The spelling of 442803863 in words is "four hundred forty-two million, eight hundred three thousand, eight hundred sixty-three".