64248678 has 96 divisors (see below), whose sum is σ = 164166912. Its totient is φ = 17971200.

The previous prime is 64248673. The next prime is 64248689. The reversal of 64248678 is 87684246.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64248673) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 123058 + ... + 123578.

It is an arithmetic number, because the mean of its divisors is an integer number (1710072).

Almost surely, 2^64248678 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64248678, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82083456).

64248678 is an abundant number, since it is smaller than the sum of its proper divisors (99918234).

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

64248678 is a wasteful number, since it uses less digits than its factorization.

64248678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 590 (or 587 counting only the distinct ones).

The product of its digits is 516096, while the sum is 45.

The square root of 64248678 is about 8015.5273064222. The cubic root of 64248678 is about 400.5174095964.

The spelling of 64248678 in words is "sixty-four million, two hundred forty-eight thousand, six hundred seventy-eight".