84489719 has 2 divisors, whose sum is σ = 84489720. Its totient is φ = 84489718.

The previous prime is 84489701. The next prime is 84489733. The reversal of 84489719 is 91798448.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 84489719 - 2²⁴ = 67712503 is a prime.

It is a super-2 number, since 2×84489719² = 14277025233397922, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84489749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42244859 + 42244860.

It is an arithmetic number, because the mean of its divisors is an integer number (42244860).

Almost surely, 2^84489719 is an apocalyptic number.

84489719 is a deficient number, since it is larger than the sum of its proper divisors (1).

84489719 is an equidigital number, since it uses as much as digits as its factorization.

84489719 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 580608, while the sum is 50.

The square root of 84489719 is about 9191.8289257362. The cubic root of 84489719 is about 438.8013502018.

The spelling of 84489719 in words is "eighty-four million, four hundred eighty-nine thousand, seven hundred nineteen".