8075891 has 4 divisors (see below), whose sum is σ = 8354400. Its totient is φ = 7797384.

The previous prime is 8075887. The next prime is 8075909. The reversal of 8075891 is 1985708.

8075891 = 123² + 124² + ... + 296².

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 8075891 - 2² = 8075887 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8075801) 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, 139211 + ... + 139268.

It is an arithmetic number, because the mean of its divisors is an integer number (2088600).

Almost surely, 2^8075891 is an apocalyptic number.

8075891 is a deficient number, since it is larger than the sum of its proper divisors (278509).

8075891 is a wasteful number, since it uses less digits than its factorization.

8075891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278508.

The product of its (nonzero) digits is 20160, while the sum is 38.

The square root of 8075891 is about 2841.8112182198. The cubic root of 8075891 is about 200.6304356663.

The spelling of 8075891 in words is "eight million, seventy-five thousand, eight hundred ninety-one".