8053991 has 4 divisors (see below), whose sum is σ = 8786184. Its totient is φ = 7321800.

The previous prime is 8053987. The next prime is 8054021. The reversal of 8053991 is 1993508.

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 8053991 - 2² = 8053987 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8053921) 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, 366080 + ... + 366101.

It is an arithmetic number, because the mean of its divisors is an integer number (2196546).

Almost surely, 2^8053991 is an apocalyptic number.

8053991 is a deficient number, since it is larger than the sum of its proper divisors (732193).

8053991 is a wasteful number, since it uses less digits than its factorization.

8053991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 732192.

The product of its (nonzero) digits is 9720, while the sum is 35.

The square root of 8053991 is about 2837.9554260065. The cubic root of 8053991 is about 200.4489166155.

The spelling of 8053991 in words is "eight million, fifty-three thousand, nine hundred ninety-one".