8611287 has 4 divisors (see below), whose sum is σ = 11481720. Its totient is φ = 5740856.

The previous prime is 8611283. The next prime is 8611297. The reversal of 8611287 is 7821168.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 8611287 - 2² = 8611283 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8611283) 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 3 ways as a sum of consecutive naturals, for example, 1435212 + ... + 1435217.

It is an arithmetic number, because the mean of its divisors is an integer number (2870430).

Almost surely, 2^8611287 is an apocalyptic number.

8611287 is a deficient number, since it is larger than the sum of its proper divisors (2870433).

8611287 is a wasteful number, since it uses less digits than its factorization.

8611287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2870432.

The product of its digits is 5376, while the sum is 33.

The square root of 8611287 is about 2934.4994462429. The cubic root of 8611287 is about 204.9695532812.

The spelling of 8611287 in words is "eight million, six hundred eleven thousand, two hundred eighty-seven".