64789248 has 72 divisors (see below), whose sum is σ = 178441200. Its totient is φ = 20844544.

The previous prime is 64789217. The next prime is 64789253. The reversal of 64789248 is 84298746.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a junction number, because it is equal to n+sod(n) for n = 64789197 and 64789206.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20818 + ... + 23726.

It is an arithmetic number, because the mean of its divisors is an integer number (2478350).

Almost surely, 2^64789248 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 64789248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89220600).

64789248 is an abundant number, since it is smaller than the sum of its proper divisors (113651952).

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

64789248 is a wasteful number, since it uses less digits than its factorization.

64789248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2957 (or 2943 counting only the distinct ones).

The product of its digits is 774144, while the sum is 48.

The square root of 64789248 is about 8049.1768523247. The cubic root of 64789248 is about 401.6375535641.

The spelling of 64789248 in words is "sixty-four million, seven hundred eighty-nine thousand, two hundred forty-eight".