64478603 has 8 divisors (see below), whose sum is σ = 78024672. Its totient is φ = 52016256.

The previous prime is 64478539. The next prime is 64478621. The reversal of 64478603 is 30687446.

64478603 = 3032² + 3033² + ... + 3038².

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 64478603 - 2⁶ = 64478539 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64478663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 270800 + ... + 271037.

It is an arithmetic number, because the mean of its divisors is an integer number (9753084).

Almost surely, 2^64478603 is an apocalyptic number.

64478603 is a deficient number, since it is larger than the sum of its proper divisors (13546069).

64478603 is a wasteful number, since it uses less digits than its factorization.

64478603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 541861.

The product of its (nonzero) digits is 96768, while the sum is 38.

The square root of 64478603 is about 8029.8569725743. The cubic root of 64478603 is about 400.9946143890.

The spelling of 64478603 in words is "sixty-four million, four hundred seventy-eight thousand, six hundred three".