84425712 has 80 divisors (see below), whose sum is σ = 256031232. Its totient is φ = 23466240.

The previous prime is 84425711. The next prime is 84425743. The reversal of 84425712 is 21752448.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84425711) 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, 9037 + ... + 15827.

Almost surely, 2^84425712 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 84425712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (128015616).

84425712 is an abundant number, since it is smaller than the sum of its proper divisors (171605520).

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

84425712 is a wasteful number, since it uses less digits than its factorization.

84425712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6846 (or 6840 counting only the distinct ones).

The product of its digits is 17920, while the sum is 33.

The square root of 84425712 is about 9188.3465324290. The cubic root of 84425712 is about 438.6905144149.

The spelling of 84425712 in words is "eighty-four million, four hundred twenty-five thousand, seven hundred twelve".