84393712 has 80 divisors (see below), whose sum is σ = 193112640. Its totient is φ = 35352576.

The previous prime is 84393697. The next prime is 84393719. The reversal of 84393712 is 21739348.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84393719) 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, 102133 + ... + 102955.

It is an arithmetic number, because the mean of its divisors is an integer number (2413908).

Almost surely, 2^84393712 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 84393712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96556320).

84393712 is an abundant number, since it is smaller than the sum of its proper divisors (108718928).

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

84393712 is a wasteful number, since it uses less digits than its factorization.

84393712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 890 (or 884 counting only the distinct ones).

The product of its digits is 36288, while the sum is 37.

The square root of 84393712 is about 9186.6050312398. The cubic root of 84393712 is about 438.6350815768.

The spelling of 84393712 in words is "eighty-four million, three hundred ninety-three thousand, seven hundred twelve".