84770224 has 80 divisors (see below), whose sum is σ = 207486720. Its totient is φ = 32590080.

The previous prime is 84770221. The next prime is 84770233. The reversal of 84770224 is 42207748.

It is a self number, because there is not a number n which added to its sum of digits gives 84770224.

It is not an unprimeable number, because it can be changed into a prime (84770221) 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, 101842 + ... + 102670.

It is an arithmetic number, because the mean of its divisors is an integer number (2593584).

Almost surely, 2^84770224 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 84770224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (103743360).

84770224 is an abundant number, since it is smaller than the sum of its proper divisors (122716496).

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

84770224 is a wasteful number, since it uses less digits than its factorization.

84770224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 938 (or 932 counting only the distinct ones).

The product of its (nonzero) digits is 25088, while the sum is 34.

The square root of 84770224 is about 9207.0746711428. The cubic root of 84770224 is about 439.2864191157.

The spelling of 84770224 in words is "eighty-four million, seven hundred seventy thousand, two hundred twenty-four".