64978848 has 240 divisors, whose sum is σ = 217346976. Its totient is φ = 18869760.

The previous prime is 64978829. The next prime is 64978867. The reversal of 64978848 is 84887946.

It is an interprime number because it is at equal distance from previous prime (64978829) and next prime (64978867).

It is a Harshad number since it is a multiple of its sum of digits (54).

Its product of digits (3096576) is a multiple of the sum of its prime divisors (112).

It is a junction number, because it is equal to n+sod(n) for n = 64978794 and 64978803.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1225990 + ... + 1226042.

Almost surely, 2^64978848 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 64978848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (108673488).

64978848 is an abundant number, since it is smaller than the sum of its proper divisors (152368128).

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

64978848 is a wasteful number, since it uses less digits than its factorization.

64978848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129 (or 112 counting only the distinct ones).

The product of its digits is 3096576, while the sum is 54.

The square root of 64978848 is about 8060.9458502089. The cubic root of 64978848 is about 402.0289575932.

It can be divided in two parts, 649 and 78848, that added together give a palindrome (79497).

The spelling of 64978848 in words is "sixty-four million, nine hundred seventy-eight thousand, eight hundred forty-eight".