64842756 has 48 divisors (see below), whose sum is σ = 167780928. Its totient is φ = 19324800.

The previous prime is 64842733. The next prime is 64842769. The reversal of 64842756 is 65724846.

64842756 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4026 + ... + 12078.

It is an arithmetic number, because the mean of its divisors is an integer number (3495436).

Almost surely, 2^64842756 is an apocalyptic number.

64842756 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is a pronic number, being equal to 8052×8053.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64842756, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83890464).

64842756 is an abundant number, since it is smaller than the sum of its proper divisors (102938172).

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

64842756 is a wasteful number, since it uses less digits than its factorization.

64842756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8132 (or 8130 counting only the distinct ones).

The product of its digits is 322560, while the sum is 42.

The square root of 64842756 is about 8052.4999844769. The cubic root of 64842756 is about 401.7480909826.

The spelling of 64842756 in words is "sixty-four million, eight hundred forty-two thousand, seven hundred fifty-six".