64283968 has 112 divisors (see below), whose sum is σ = 154497024. Its totient is φ = 25966080.

The previous prime is 64283963. The next prime is 64283977. The reversal of 64283968 is 86938246.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (112).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64283963) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 905373 + ... + 905443.

Almost surely, 2^64283968 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 64283968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77248512).

64283968 is an abundant number, since it is smaller than the sum of its proper divisors (90213056).

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

64283968 is a wasteful number, since it uses less digits than its factorization.

64283968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180 (or 170 counting only the distinct ones).

The product of its digits is 497664, while the sum is 46.

The square root of 64283968 is about 8017.7283565858. The cubic root of 64283968 is about 400.5907271741.

The spelling of 64283968 in words is "sixty-four million, two hundred eighty-three thousand, nine hundred sixty-eight".