64696968 has 160 divisors (see below), whose sum is σ = 219542400. Its totient is φ = 17376768.

The previous prime is 64696903. The next prime is 64696987. The reversal of 64696968 is 86969646.

It is a happy number.

64696968 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

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 39 ways as a sum of consecutive naturals, for example, 76693 + ... + 77531.

It is an arithmetic number, because the mean of its divisors is an integer number (1372140).

Almost surely, 2^64696968 is an apocalyptic number.

64696968 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64696968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (109771200).

64696968 is an abundant number, since it is smaller than the sum of its proper divisors (154845432).

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

64696968 is a wasteful number, since it uses less digits than its factorization.

64696968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 881 (or 868 counting only the distinct ones).

The product of its digits is 3359232, while the sum is 54.

The square root of 64696968 is about 8043.4425465717. The cubic root of 64696968 is about 401.4467774452.

The spelling of 64696968 in words is "sixty-four million, six hundred ninety-six thousand, nine hundred sixty-eight".