842957 has 2 divisors, whose sum is σ = 842958. Its totient is φ = 842956.

The previous prime is 842951. The next prime is 842969. The reversal of 842957 is 759248.

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., 630436 + 212521 = 794^2 + 461^2 .

It is a cyclic number.

It is not a de Polignac number, because 842957 - 2⁸ = 842701 is a prime.

It is a d-powerful number, because it can be written as 8³ + 4⁵ + 9⁴ + 2¹³ + 5⁵ + 7⁷ .

It is a plaindrome in base 13.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 842957.

It is not a weakly prime, because it can be changed into another prime (842951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 421478 + 421479.

It is an arithmetic number, because the mean of its divisors is an integer number (421479).

2⁸⁴²⁹⁵⁷ is an apocalyptic number.

It is an amenable number.

842957 is a deficient number, since it is larger than the sum of its proper divisors (1).

842957 is an equidigital number, since it uses as much as digits as its factorization.

842957 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20160, while the sum is 35.

The square root of 842957 is about 918.1268975474. The cubic root of 842957 is about 94.4644659847.

The spelling of 842957 in words is "eight hundred forty-two thousand, nine hundred fifty-seven".