84024389 has 8 divisors (see below), whose sum is σ = 85645560. Its totient is φ = 82411200.

The previous prime is 84024379. The next prime is 84024433. The reversal of 84024389 is 98342048.

It can be written as a sum of positive squares in 4 ways, for example, as 667489 + 83356900 = 817^2 + 9130^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-84024389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84024329) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21959 + ... + 25499.

It is an arithmetic number, because the mean of its divisors is an integer number (10705695).

Almost surely, 2^84024389 is an apocalyptic number.

It is an amenable number.

84024389 is a deficient number, since it is larger than the sum of its proper divisors (1621171).

84024389 is a wasteful number, since it uses less digits than its factorization.

84024389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3991.

The product of its (nonzero) digits is 55296, while the sum is 38.

The square root of 84024389 is about 9166.4818223787. The cubic root of 84024389 is about 437.9942956382.

The spelling of 84024389 in words is "eighty-four million, twenty-four thousand, three hundred eighty-nine".