84722064 has 160 divisors (see below), whose sum is σ = 275220480. Its totient is φ = 21897216.

The previous prime is 84722063. The next prime is 84722093. The reversal of 84722064 is 46022748.

It is not an unprimeable number, because it can be changed into a prime (84722063) 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, 146544 + ... + 147120.

It is an arithmetic number, because the mean of its divisors is an integer number (1720128).

Almost surely, 2^84722064 is an apocalyptic number.

84722064 is a gapful number since it is divisible by the number (84) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 84722064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (137610240).

84722064 is an abundant number, since it is smaller than the sum of its proper divisors (190498416).

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

84722064 is a wasteful number, since it uses less digits than its factorization.

84722064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 637 (or 631 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 33.

The square root of 84722064 is about 9204.4589194585. The cubic root of 84722064 is about 439.2032136354.

The spelling of 84722064 in words is "eighty-four million, seven hundred twenty-two thousand, sixty-four".