84006019 has 2 divisors, whose sum is σ = 84006020. Its totient is φ = 84006018.

The previous prime is 84005983. The next prime is 84006023. The reversal of 84006019 is 91060048.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 84006019 - 2⁹ = 84005507 is a prime.

It is a super-2 number, since 2×84006019² = 14114022456456722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (84006319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42003009 + 42003010.

It is an arithmetic number, because the mean of its divisors is an integer number (42003010).

Almost surely, 2^84006019 is an apocalyptic number.

84006019 is a deficient number, since it is larger than the sum of its proper divisors (1).

84006019 is an equidigital number, since it uses as much as digits as its factorization.

84006019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 84006019 is about 9165.4797474000. The cubic root of 84006019 is about 437.9623741857.

The spelling of 84006019 in words is "eighty-four million, six thousand, nineteen".