64084720 has 120 divisors (see below), whose sum is σ = 180283104. Its totient is φ = 20749824.

The previous prime is 64084711. The next prime is 64084723. The reversal of 64084720 is 2748046.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64084723) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 202002 + ... + 202318.

Almost surely, 2^64084720 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 64084720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90141552).

64084720 is an abundant number, since it is smaller than the sum of its proper divisors (116198384).

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

64084720 is a wasteful number, since it uses less digits than its factorization.

64084720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375 (or 350 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 31.

The square root of 64084720 is about 8005.2932488448. The cubic root of 64084720 is about 400.1764221766.

The spelling of 64084720 in words is "sixty-four million, eighty-four thousand, seven hundred twenty".