84564744 has 128 divisors (see below), whose sum is σ = 253670400. Its totient is φ = 23189760.

The previous prime is 84564743. The next prime is 84564761. The reversal of 84564744 is 44746548.

It is a junction number, because it is equal to n+sod(n) for n = 84564696 and 84564705.

It is not an unprimeable number, because it can be changed into a prime (84564743) 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, 115002 + ... + 115734.

It is an arithmetic number, because the mean of its divisors is an integer number (1981800).

Almost surely, 2^84564744 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 84564744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (126835200).

84564744 is an abundant number, since it is smaller than the sum of its proper divisors (169105656).

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

84564744 is a wasteful number, since it uses less digits than its factorization.

84564744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 795 (or 791 counting only the distinct ones).

The product of its digits is 430080, while the sum is 42.

The square root of 84564744 is about 9195.9090904597. The cubic root of 84564744 is about 438.9311937382.

The spelling of 84564744 in words is "eighty-four million, five hundred sixty-four thousand, seven hundred forty-four".