84389045 has 16 divisors (see below), whose sum is σ = 112007280. Its totient is φ = 60632064.

The previous prime is 84389009. The next prime is 84389083. The reversal of 84389045 is 54098348.

It can be written as a sum of positive squares in 8 ways, for example, as 1615441 + 82773604 = 1271^2 + 9098^2 .

It is a cyclic number.

It is not a de Polignac number, because 84389045 - 2²⁶ = 17280181 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 84388993 and 84389011.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15140 + ... + 19949.

It is an arithmetic number, because the mean of its divisors is an integer number (7000455).

Almost surely, 2^84389045 is an apocalyptic number.

It is an amenable number.

84389045 is a deficient number, since it is larger than the sum of its proper divisors (27618235).

84389045 is a wasteful number, since it uses less digits than its factorization.

84389045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35144.

The product of its (nonzero) digits is 138240, while the sum is 41.

The square root of 84389045 is about 9186.3510165898. The cubic root of 84389045 is about 438.6269958730.

The spelling of 84389045 in words is "eighty-four million, three hundred eighty-nine thousand, forty-five".