8285491 has 2 divisors, whose sum is σ = 8285492. Its totient is φ = 8285490.

The previous prime is 8285471. The next prime is 8285507. The reversal of 8285491 is 1945828.

8285491 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 8285491 - 2⁷ = 8285363 is a prime.

It is a super-2 number, since 2×8285491² = 137298722222162, which contains 22 as substring.

It is a Chen prime.

8285491 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 8285491.

It is not a weakly prime, because it can be changed into another prime (8285411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4142745 + 4142746.

It is an arithmetic number, because the mean of its divisors is an integer number (4142746).

Almost surely, 2^8285491 is an apocalyptic number.

8285491 is a deficient number, since it is larger than the sum of its proper divisors (1).

8285491 is an equidigital number, since it uses as much as digits as its factorization.

8285491 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23040, while the sum is 37.

The square root of 8285491 is about 2878.4528830606. The cubic root of 8285491 is about 202.3513393490.

The spelling of 8285491 in words is "eight million, two hundred eighty-five thousand, four hundred ninety-one".