8012991 has 16 divisors (see below), whose sum is σ = 12379904. Its totient is φ = 4515264.

The previous prime is 8012987. The next prime is 8013013. The reversal of 8012991 is 1992108.

It is not a de Polignac number, because 8012991 - 2² = 8012987 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8012941) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1081 + ... + 4146.

It is an arithmetic number, because the mean of its divisors is an integer number (773744).

Almost surely, 2^8012991 is an apocalyptic number.

8012991 is a deficient number, since it is larger than the sum of its proper divisors (4366913).

8012991 is a wasteful number, since it uses less digits than its factorization.

8012991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5310.

The product of its (nonzero) digits is 1296, while the sum is 30.

The square root of 8012991 is about 2830.7226992413. The cubic root of 8012991 is about 200.1081997868.

The spelling of 8012991 in words is "eight million, twelve thousand, nine hundred ninety-one".