64683816 has 32 divisors (see below), whose sum is σ = 162354240. Its totient is φ = 21475328.

The previous prime is 64683803. The next prime is 64683823. The reversal of 64683816 is 61838646.

It is a happy number.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 925 + ... + 11411.

It is an arithmetic number, because the mean of its divisors is an integer number (5073570).

Almost surely, 2^64683816 is an apocalyptic number.

It is an amenable number.

64683816 is an abundant number, since it is smaller than the sum of its proper divisors (97670424).

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

64683816 is a wasteful number, since it uses less digits than its factorization.

64683816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10753 (or 10749 counting only the distinct ones).

The product of its digits is 165888, while the sum is 42.

The square root of 64683816 is about 8042.6249446310. The cubic root of 64683816 is about 401.4195727400.

The spelling of 64683816 in words is "sixty-four million, six hundred eighty-three thousand, eight hundred sixteen".