8058991 has 4 divisors (see below), whose sum is σ = 8087752. Its totient is φ = 8030232.

The previous prime is 8058937. The next prime is 8059033. The reversal of 8058991 is 1998508.

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 8058991 - 2¹¹ = 8056943 is a prime.

It is a Duffinian number.

8058991 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8058091) 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, 13956 + ... + 14521.

It is an arithmetic number, because the mean of its divisors is an integer number (2021938).

Almost surely, 2^8058991 is an apocalyptic number.

8058991 is a deficient number, since it is larger than the sum of its proper divisors (28761).

8058991 is a wasteful number, since it uses less digits than its factorization.

8058991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28760.

The product of its (nonzero) digits is 25920, while the sum is 40.

The square root of 8058991 is about 2838.8362052080. The cubic root of 8058991 is about 200.4903882806.

The spelling of 8058991 in words is "eight million, fifty-eight thousand, nine hundred ninety-one".