84485719 has 2 divisors, whose sum is σ = 84485720. Its totient is φ = 84485718.

The previous prime is 84485717. The next prime is 84485749. The reversal of 84485719 is 91758448.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 84485719 - 2¹ = 84485717 is a prime.

It is a super-2 number, since 2×84485719² = 14275673429893922, which contains 22 as substring.

Together with 84485717, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84485717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42242859 + 42242860.

It is an arithmetic number, because the mean of its divisors is an integer number (42242860).

Almost surely, 2^84485719 is an apocalyptic number.

84485719 is a deficient number, since it is larger than the sum of its proper divisors (1).

84485719 is an equidigital number, since it uses as much as digits as its factorization.

84485719 is an evil number, because the sum of its binary digits is even.

The product of its digits is 322560, while the sum is 46.

The square root of 84485719 is about 9191.6113386065. The cubic root of 84485719 is about 438.7944253628.

The spelling of 84485719 in words is "eighty-four million, four hundred eighty-five thousand, seven hundred nineteen".