847261 has 8 divisors (see below), whose sum is σ = 885248. Its totient is φ = 810000.

The previous prime is 847247. The next prime is 847271. The reversal of 847261 is 162748.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a 4-Lehmer number, since φ(847261) divides (847261-1)⁴.

It is a cyclic number.

It is not a de Polignac number, because 847261 - 2⁹ = 846749 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 (847201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4591 + ... + 4771.

It is an arithmetic number, because the mean of its divisors is an integer number (110656).

It is a Poulet number, since it divides 2⁸⁴⁷²⁶⁰-1.

2⁸⁴⁷²⁶¹ is an apocalyptic number.

It is an amenable number.

847261 is a deficient number, since it is larger than the sum of its proper divisors (37987).

847261 is a wasteful number, since it uses less digits than its factorization.

847261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363.

The product of its digits is 2688, while the sum is 28.

The square root of 847261 is about 920.4678158415. The cubic root of 847261 is about 94.6249664805.

The spelling of 847261 in words is "eight hundred forty-seven thousand, two hundred sixty-one".