442973 has 2 divisors, whose sum is σ = 442974. Its totient is φ = 442972.

The previous prime is 442963. The next prime is 442979. The reversal of 442973 is 379244.

442973 is nontrivially palindromic in base 15.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 252004 + 190969 = 502^2 + 437^2 .

It is a cyclic number.

It is not a de Polignac number, because 442973 - 2¹² = 438877 is a prime.

It is a Sophie Germain prime.

It is a d-powerful number, because it can be written as 4⁶ + 4⁹ + 9⁵ + 2⁵ + 7⁶ + 3 .

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (442979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221486 + 221487.

It is an arithmetic number, because the mean of its divisors is an integer number (221487).

2⁴⁴²⁹⁷³ is an apocalyptic number.

It is an amenable number.

442973 is a deficient number, since it is larger than the sum of its proper divisors (1).

442973 is an equidigital number, since it uses as much as digits as its factorization.

442973 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6048, while the sum is 29.

The square root of 442973 is about 665.5621683960. The cubic root of 442973 is about 76.2299705521.

The spelling of 442973 in words is "four hundred forty-two thousand, nine hundred seventy-three".