84689448 has 64 divisors (see below), whose sum is σ = 218861760. Its totient is φ = 27288576.

The previous prime is 84689447. The next prime is 84689453. The reversal of 84689448 is 84498648.

It is a self number, because there is not a number n which added to its sum of digits gives 84689448.

It is not an unprimeable number, because it can be changed into a prime (84689447) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 251136 + ... + 251472.

It is an arithmetic number, because the mean of its divisors is an integer number (3419715).

Almost surely, 2^84689448 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 84689448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (109430880).

84689448 is an abundant number, since it is smaller than the sum of its proper divisors (134172312).

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

84689448 is a wasteful number, since it uses less digits than its factorization.

84689448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 666 (or 662 counting only the distinct ones).

The product of its digits is 1769472, while the sum is 51.

The square root of 84689448 is about 9202.6869989150. The cubic root of 84689448 is about 439.1468454356.

The spelling of 84689448 in words is "eighty-four million, six hundred eighty-nine thousand, four hundred forty-eight".