8045891 has 4 divisors (see below), whose sum is σ = 9195312. Its totient is φ = 6896472.

The previous prime is 8045887. The next prime is 8045897. The reversal of 8045891 is 1985408.

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 8045891 - 2² = 8045887 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8045897) 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, 574700 + ... + 574713.

It is an arithmetic number, because the mean of its divisors is an integer number (2298828).

Almost surely, 2^8045891 is an apocalyptic number.

8045891 is a deficient number, since it is larger than the sum of its proper divisors (1149421).

8045891 is a wasteful number, since it uses less digits than its factorization.

8045891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1149420.

The product of its (nonzero) digits is 11520, while the sum is 35.

The square root of 8045891 is about 2836.5279832923. The cubic root of 8045891 is about 200.3816960771.

The spelling of 8045891 in words is "eight million, forty-five thousand, eight hundred ninety-one".