84585438 has 64 divisors (see below), whose sum is σ = 227473920. Its totient is φ = 22743936.

The previous prime is 84585437. The next prime is 84585443. The reversal of 84585438 is 83458548.

It is a junction number, because it is equal to n+sod(n) for n = 84585393 and 84585402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84585437) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 156 + ... + 13007.

It is an arithmetic number, because the mean of its divisors is an integer number (3554280).

Almost surely, 2^84585438 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 84585438, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (113736960).

84585438 is an abundant number, since it is smaller than the sum of its proper divisors (142888482).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

84585438 is a wasteful number, since it uses less digits than its factorization.

84585438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13198 (or 13192 counting only the distinct ones).

The product of its digits is 614400, while the sum is 45.

The square root of 84585438 is about 9197.0341958699. The cubic root of 84585438 is about 438.9669947149.

The spelling of 84585438 in words is "eighty-four million, five hundred eighty-five thousand, four hundred thirty-eight".