8456791 has 4 divisors (see below), whose sum is σ = 9664912. Its totient is φ = 7248672.

The previous prime is 8456771. The next prime is 8456797. The reversal of 8456791 is 1976548.

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 8456791 - 2¹⁵ = 8424023 is a prime.

It is a Duffinian number.

8456791 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8456797) 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, 604050 + ... + 604063.

It is an arithmetic number, because the mean of its divisors is an integer number (2416228).

Almost surely, 2^8456791 is an apocalyptic number.

8456791 is a deficient number, since it is larger than the sum of its proper divisors (1208121).

8456791 is a wasteful number, since it uses less digits than its factorization.

8456791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1208120.

The product of its digits is 60480, while the sum is 40.

The square root of 8456791 is about 2908.0562236656. The cubic root of 8456791 is about 203.7363552407.

The spelling of 8456791 in words is "eight million, four hundred fifty-six thousand, seven hundred ninety-one".