8179489 has 2 divisors, whose sum is σ = 8179490. Its totient is φ = 8179488.

The previous prime is 8179487. The next prime is 8179511. The reversal of 8179489 is 9849718.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7700625 + 478864 = 2775^2 + 692^2 .

It is a cyclic number.

It is not a de Polignac number, because 8179489 - 2¹ = 8179487 is a prime.

It is a super-2 number, since 2×8179489² = 133808080602242, which contains 22 as substring.

Together with 8179487, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (8179487) 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, 4089744 + 4089745.

It is an arithmetic number, because the mean of its divisors is an integer number (4089745).

Almost surely, 2^8179489 is an apocalyptic number.

It is an amenable number.

8179489 is a deficient number, since it is larger than the sum of its proper divisors (1).

8179489 is an equidigital number, since it uses as much as digits as its factorization.

8179489 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 145152, while the sum is 46.

The square root of 8179489 is about 2859.9805943398. The cubic root of 8179489 is about 201.4846928299.

It can be divided in two parts, 8179 and 489, that added together give a palindrome (8668).

The spelling of 8179489 in words is "eight million, one hundred seventy-nine thousand, four hundred eighty-nine".