478739705 has 8 divisors (see below), whose sum is σ = 576892800. Its totient is φ = 381388336.

The previous prime is 478739699. The next prime is 478739711. The reversal of 478739705 is 507937874.

It is an interprime number because it is at equal distance from previous prime (478739699) and next prime (478739711).

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 478739705 - 2⁸ = 478739449 is a prime.

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, 199115 + ... + 201504.

It is an arithmetic number, because the mean of its divisors is an integer number (72111600).

Almost surely, 2^478739705 is an apocalyptic number.

It is an amenable number.

478739705 is a deficient number, since it is larger than the sum of its proper divisors (98153095).

478739705 is a wasteful number, since it uses less digits than its factorization.

478739705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400863.

The product of its (nonzero) digits is 1481760, while the sum is 50.

The square root of 478739705 is about 21880.1212290974. The cubic root of 478739705 is about 782.2876653745.

The spelling of 478739705 in words is "four hundred seventy-eight million, seven hundred thirty-nine thousand, seven hundred five".