8540999 has 2 divisors, whose sum is σ = 8541000. Its totient is φ = 8540998.

The previous prime is 8540989. The next prime is 8541007. The reversal of 8540999 is 9990458.

8540999 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8540999 - 2⁸ = 8540743 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8540989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4270499 + 4270500.

It is an arithmetic number, because the mean of its divisors is an integer number (4270500).

Almost surely, 2^8540999 is an apocalyptic number.

8540999 is a deficient number, since it is larger than the sum of its proper divisors (1).

8540999 is an equidigital number, since it uses as much as digits as its factorization.

8540999 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 116640, while the sum is 44.

The square root of 8540999 is about 2922.4987596233. The cubic root of 8540999 is about 204.4103539982.

The spelling of 8540999 in words is "eight million, five hundred forty thousand, nine hundred ninety-nine".