442914487 has 2 divisors, whose sum is σ = 442914488. Its totient is φ = 442914486.

The previous prime is 442914467. The next prime is 442914497. The reversal of 442914487 is 784419244.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 442914487 - 2⁷ = 442914359 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (442914467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221457243 + 221457244.

It is an arithmetic number, because the mean of its divisors is an integer number (221457244).

Almost surely, 2^442914487 is an apocalyptic number.

442914487 is a deficient number, since it is larger than the sum of its proper divisors (1).

442914487 is an equidigital number, since it uses as much as digits as its factorization.

442914487 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 258048, while the sum is 43.

The square root of 442914487 is about 21045.5336591876. The cubic root of 442914487 is about 762.2661395870.

The spelling of 442914487 in words is "four hundred forty-two million, nine hundred fourteen thousand, four hundred eighty-seven".