842497 has 2 divisors, whose sum is σ = 842498. Its totient is φ = 842496.

The previous prime is 842489. The next prime is 842507. The reversal of 842497 is 794248.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 817216 + 25281 = 904^2 + 159^2 .

It is a cyclic number.

It is not a de Polignac number, because 842497 - 2³ = 842489 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (842407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 421248 + 421249.

It is an arithmetic number, because the mean of its divisors is an integer number (421249).

2⁸⁴²⁴⁹⁷ is an apocalyptic number.

It is an amenable number.

842497 is a deficient number, since it is larger than the sum of its proper divisors (1).

842497 is an equidigital number, since it uses as much as digits as its factorization.

842497 is an odious number, because the sum of its binary digits is odd.

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

The square root of 842497 is about 917.8763533287. The cubic root of 842497 is about 94.4472798329.

The spelling of 842497 in words is "eight hundred forty-two thousand, four hundred ninety-seven".