8242791 has 4 divisors (see below), whose sum is σ = 10990392. Its totient is φ = 5495192.

The previous prime is 8242783. The next prime is 8242811. The reversal of 8242791 is 1972428.

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 8242791 - 2³ = 8242783 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8241791) 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, 1373796 + ... + 1373801.

It is an arithmetic number, because the mean of its divisors is an integer number (2747598).

Almost surely, 2^8242791 is an apocalyptic number.

8242791 is a deficient number, since it is larger than the sum of its proper divisors (2747601).

8242791 is a wasteful number, since it uses less digits than its factorization.

8242791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2747600.

The product of its digits is 8064, while the sum is 33.

The square root of 8242791 is about 2871.0261231831. The cubic root of 8242791 is about 202.0031287298.

The spelling of 8242791 in words is "eight million, two hundred forty-two thousand, seven hundred ninety-one".