442763 has 2 divisors, whose sum is σ = 442764. Its totient is φ = 442762.

The previous prime is 442753. The next prime is 442769. The reversal of 442763 is 367244.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 442763 - 2⁴ = 442747 is a prime.

It is not a weakly prime, because it can be changed into another prime (442769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221381 + 221382.

It is an arithmetic number, because the mean of its divisors is an integer number (221382).

2⁴⁴²⁷⁶³ is an apocalyptic number.

442763 is a deficient number, since it is larger than the sum of its proper divisors (1).

442763 is an equidigital number, since it uses as much as digits as its factorization.

442763 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4032, while the sum is 26.

The square root of 442763 is about 665.4043883234. The cubic root of 442763 is about 76.2179225460.

The spelling of 442763 in words is "four hundred forty-two thousand, seven hundred sixty-three".