442897 has 16 divisors (see below), whose sum is σ = 566272. Its totient is φ = 336960.

The previous prime is 442879. The next prime is 442903. The reversal of 442897 is 798244.

It is a happy number.

It is not a de Polignac number, because 442897 - 2⁷ = 442769 is a prime.

It is not an unprimeable number, because it can be changed into a prime (442807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2743 + ... + 2899.

It is an arithmetic number, because the mean of its divisors is an integer number (35392).

2⁴⁴²⁸⁹⁷ is an apocalyptic number.

It is an amenable number.

442897 is a deficient number, since it is larger than the sum of its proper divisors (123375).

442897 is a wasteful number, since it uses less digits than its factorization.

442897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208.

The product of its digits is 16128, while the sum is 34.

The square root of 442897 is about 665.5050713556. The cubic root of 442897 is about 76.2256107610.

The spelling of 442897 in words is "four hundred forty-two thousand, eight hundred ninety-seven".