442837 has 2 divisors, whose sum is σ = 442838. Its totient is φ = 442836.

The previous prime is 442831. The next prime is 442843. The reversal of 442837 is 738244.

It is a balanced prime because it is at equal distance from previous prime (442831) and next prime (442843).

It can be written as a sum of positive squares in only one way, i.e., 271441 + 171396 = 521^2 + 414^2 .

It is a cyclic number.

It is not a de Polignac number, because 442837 - 2³ = 442829 is a prime.

It is a super-2 number, since 2×442837² = 392209217138, which contains 22 as substring.

It is a Chen prime.

It is a nialpdrome in base 9 and base 14.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (442831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221418 + 221419.

It is an arithmetic number, because the mean of its divisors is an integer number (221419).

2⁴⁴²⁸³⁷ is an apocalyptic number.

It is an amenable number.

442837 is a deficient number, since it is larger than the sum of its proper divisors (1).

442837 is an equidigital number, since it uses as much as digits as its factorization.

442837 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5376, while the sum is 28.

The square root of 442837 is about 665.4599912842. The cubic root of 442837 is about 76.2221684684. Note that the first 3 decimals are identical.

It can be divided in two parts, 4428 and 37, that added together give a triangular number (4465 = T₉₄).

The spelling of 442837 in words is "four hundred forty-two thousand, eight hundred thirty-seven".