64478283 has 8 divisors (see below), whose sum is σ = 86089728. Its totient is φ = 42926184.

The previous prime is 64478279. The next prime is 64478287. The reversal of 64478283 is 38287446.

It is an interprime number because it is at equal distance from previous prime (64478279) and next prime (64478287).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 64478283 - 2² = 64478279 is a prime.

It is not an unprimeable number, because it can be changed into a prime (64478287) by changing a digit.

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, 12235 + ... + 16692.

It is an arithmetic number, because the mean of its divisors is an integer number (10761216).

Almost surely, 2^64478283 is an apocalyptic number.

64478283 is a deficient number, since it is larger than the sum of its proper divisors (21611445).

64478283 is a wasteful number, since it uses less digits than its factorization.

64478283 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29673.

The product of its digits is 258048, while the sum is 42.

The square root of 64478283 is about 8029.8370469145. The cubic root of 64478283 is about 400.9939510243.

The spelling of 64478283 in words is "sixty-four million, four hundred seventy-eight thousand, two hundred eighty-three".