8519491 has 2 divisors, whose sum is σ = 8519492. Its totient is φ = 8519490.

The previous prime is 8519479. The next prime is 8519551. The reversal of 8519491 is 1949158.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8519491 - 2¹⁹ = 7995203 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8519491.

It is not a weakly prime, because it can be changed into another prime (8519411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4259745 + 4259746.

It is an arithmetic number, because the mean of its divisors is an integer number (4259746).

Almost surely, 2^8519491 is an apocalyptic number.

8519491 is a deficient number, since it is larger than the sum of its proper divisors (1).

8519491 is an equidigital number, since it uses as much as digits as its factorization.

8519491 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12960, while the sum is 37.

The square root of 8519491 is about 2918.8167122997. The cubic root of 8519491 is about 204.2386272693.

The spelling of 8519491 in words is "eight million, five hundred nineteen thousand, four hundred ninety-one".