8248991 has 4 divisors (see below), whose sum is σ = 8440872. Its totient is φ = 8057112.

The previous prime is 8248987. The next prime is 8249009. The reversal of 8248991 is 1998428.

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 8248991 - 2² = 8248987 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 (8248901) 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, 95876 + ... + 95961.

It is an arithmetic number, because the mean of its divisors is an integer number (2110218).

Almost surely, 2^8248991 is an apocalyptic number.

8248991 is a deficient number, since it is larger than the sum of its proper divisors (191881).

8248991 is a wasteful number, since it uses less digits than its factorization.

8248991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191880.

The product of its digits is 41472, while the sum is 41.

The square root of 8248991 is about 2872.1056735434. The cubic root of 8248991 is about 202.0537630969.

The spelling of 8248991 in words is "eight million, two hundred forty-eight thousand, nine hundred ninety-one".