84419445 has 16 divisors (see below), whose sum is σ = 147350592. Its totient is φ = 40930560.

The previous prime is 84419441. The next prime is 84419471. The reversal of 84419445 is 54491448.

It is not a de Polignac number, because 84419445 - 2² = 84419441 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84419441) 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, 255652 + ... + 255981.

It is an arithmetic number, because the mean of its divisors is an integer number (9209412).

Almost surely, 2^84419445 is an apocalyptic number.

It is an amenable number.

84419445 is a deficient number, since it is larger than the sum of its proper divisors (62931147).

84419445 is a wasteful number, since it uses less digits than its factorization.

84419445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 511652.

The product of its digits is 92160, while the sum is 39.

The square root of 84419445 is about 9188.0054962979. The cubic root of 84419445 is about 438.6796593431.

The spelling of 84419445 in words is "eighty-four million, four hundred nineteen thousand, four hundred forty-five".