8731261 has 24 divisors (see below), whose sum is σ = 11261376. Its totient is φ = 6693120.

The previous prime is 8731249. The next prime is 8731277. The reversal of 8731261 is 1621378.

It is not a de Polignac number, because 8731261 - 2¹⁵ = 8698493 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8731201) 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 23 ways as a sum of consecutive naturals, for example, 52200 + ... + 52366.

It is an arithmetic number, because the mean of its divisors is an integer number (469224).

Almost surely, 2^8731261 is an apocalyptic number.

It is an amenable number.

8731261 is a deficient number, since it is larger than the sum of its proper divisors (2530115).

8731261 is a wasteful number, since it uses less digits than its factorization.

8731261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289 (or 282 counting only the distinct ones).

The product of its digits is 2016, while the sum is 28.

The square root of 8731261 is about 2954.8707247526. The cubic root of 8731261 is about 205.9170574438.

The spelling of 8731261 in words is "eight million, seven hundred thirty-one thousand, two hundred sixty-one".