8726791 has 4 divisors (see below), whose sum is σ = 8740432. Its totient is φ = 8713152.

The previous prime is 8726789. The next prime is 8726801. The reversal of 8726791 is 1976278.

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 8726791 - 2¹ = 8726789 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 (8726761) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5811 + ... + 7156.

It is an arithmetic number, because the mean of its divisors is an integer number (2185108).

Almost surely, 2^8726791 is an apocalyptic number.

8726791 is a deficient number, since it is larger than the sum of its proper divisors (13641).

8726791 is a wasteful number, since it uses less digits than its factorization.

8726791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13640.

The product of its digits is 42336, while the sum is 40.

The square root of 8726791 is about 2954.1142496525. The cubic root of 8726791 is about 205.8819114564.

The spelling of 8726791 in words is "eight million, seven hundred twenty-six thousand, seven hundred ninety-one".