8454991 has 4 divisors (see below), whose sum is σ = 8465184. Its totient is φ = 8444800.

The previous prime is 8454959. The next prime is 8455063. The reversal of 8454991 is 1994548.

8454991 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 8454991 - 2⁵ = 8454959 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 (8454191) 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, 3730 + ... + 5551.

It is an arithmetic number, because the mean of its divisors is an integer number (2116296).

Almost surely, 2^8454991 is an apocalyptic number.

8454991 is a deficient number, since it is larger than the sum of its proper divisors (10193).

8454991 is an equidigital number, since it uses as much as digits as its factorization.

8454991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10192.

The product of its digits is 51840, while the sum is 40.

The square root of 8454991 is about 2907.7467221201. The cubic root of 8454991 is about 203.7218993452.

The spelling of 8454991 in words is "eight million, four hundred fifty-four thousand, nine hundred ninety-one".