842261 has 6 divisors (see below), whose sum is σ = 979830. Its totient is φ = 721896.

The previous prime is 842249. The next prime is 842267. The reversal of 842261 is 162248.

842261 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 828100 + 14161 = 910^2 + 119^2 .

It is not a de Polignac number, because 842261 - 2¹⁰ = 841237 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (842267) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8546 + ... + 8643.

It is an arithmetic number, because the mean of its divisors is an integer number (163305).

2⁸⁴²²⁶¹ is an apocalyptic number.

It is an amenable number.

842261 is a deficient number, since it is larger than the sum of its proper divisors (137569).

842261 is a wasteful number, since it uses less digits than its factorization.

842261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17203 (or 17196 counting only the distinct ones).

The product of its digits is 768, while the sum is 23.

The square root of 842261 is about 917.7477867040. The cubic root of 842261 is about 94.4384601616.

The spelling of 842261 in words is "eight hundred forty-two thousand, two hundred sixty-one".