84085419 has 16 divisors (see below), whose sum is σ = 122492160. Its totient is φ = 50883360.

The previous prime is 84085403. The next prime is 84085453. The reversal of 84085419 is 91458048.

It is not a de Polignac number, because 84085419 - 2⁴ = 84085403 is a prime.

It is a super-2 number, since 2×84085419² = 14140715376811122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (84085499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26169 + ... + 29205.

It is an arithmetic number, because the mean of its divisors is an integer number (7655760).

Almost surely, 2^84085419 is an apocalyptic number.

84085419 is a deficient number, since it is larger than the sum of its proper divisors (38406741).

84085419 is a wasteful number, since it uses less digits than its factorization.

84085419 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3890.

The product of its (nonzero) digits is 46080, while the sum is 39.

The square root of 84085419 is about 9169.8101943279. The cubic root of 84085419 is about 438.1003137556.

The spelling of 84085419 in words is "eighty-four million, eighty-five thousand, four hundred nineteen".