84366786 has 64 divisors (see below), whose sum is σ = 199802880. Its totient is φ = 23250240.

The previous prime is 84366773. The next prime is 84366787. The reversal of 84366786 is 68766348.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (84366787) 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, 155676 + ... + 156216.

It is an arithmetic number, because the mean of its divisors is an integer number (3121920).

Almost surely, 2^84366786 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 84366786, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99901440).

84366786 is an abundant number, since it is smaller than the sum of its proper divisors (115436094).

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

84366786 is a wasteful number, since it uses less digits than its factorization.

84366786 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 679.

The product of its digits is 1161216, while the sum is 48.

The square root of 84366786 is about 9185.1394110269. The cubic root of 84366786 is about 438.5884274513.

The spelling of 84366786 in words is "eighty-four million, three hundred sixty-six thousand, seven hundred eighty-six".