64283688 has 192 divisors, whose sum is σ = 215280000. Its totient is φ = 17273088.

The previous prime is 64283671. The next prime is 64283693. The reversal of 64283688 is 88638246.

It is a happy number.

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

It is a nialpdrome in base 14.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 469156 + ... + 469292.

It is an arithmetic number, because the mean of its divisors is an integer number (1121250).

Almost surely, 2^64283688 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 64283688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107640000).

64283688 is an abundant number, since it is smaller than the sum of its proper divisors (150996312).

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

64283688 is a wasteful number, since it uses less digits than its factorization.

64283688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189 (or 168 counting only the distinct ones).

The product of its digits is 442368, while the sum is 45.

The square root of 64283688 is about 8017.7108952618. The cubic root of 64283688 is about 400.5901455590.

The spelling of 64283688 in words is "sixty-four million, two hundred eighty-three thousand, six hundred eighty-eight".