8012891 has 4 divisors (see below), whose sum is σ = 8114400. Its totient is φ = 7911384.

The previous prime is 8012887. The next prime is 8012897. The reversal of 8012891 is 1982108.

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 8012891 - 2² = 8012887 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8012897) 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, 50636 + ... + 50793.

It is an arithmetic number, because the mean of its divisors is an integer number (2028600).

Almost surely, 2^8012891 is an apocalyptic number.

8012891 is a deficient number, since it is larger than the sum of its proper divisors (101509).

8012891 is a wasteful number, since it uses less digits than its factorization.

8012891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101508.

The product of its (nonzero) digits is 1152, while the sum is 29.

The square root of 8012891 is about 2830.7050358524. The cubic root of 8012891 is about 200.1073673509.

Adding to 8012891 its reverse (1982108), we get a palindrome (9994999).

The spelling of 8012891 in words is "eight million, twelve thousand, eight hundred ninety-one".