478816715 has 24 divisors (see below), whose sum is σ = 626518800. Its totient is φ = 351122304.

The previous prime is 478816697. The next prime is 478816717. The reversal of 478816715 is 517618874.

It is not a de Polignac number, because 478816715 - 2²⁴ = 462039499 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 478816715.

It is not an unprimeable number, because it can be changed into a prime (478816717) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 124004 + ... + 127806.

It is an arithmetic number, because the mean of its divisors is an integer number (26104950).

Almost surely, 2^478816715 is an apocalyptic number.

478816715 is a deficient number, since it is larger than the sum of its proper divisors (147702085).

478816715 is a wasteful number, since it uses less digits than its factorization.

478816715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3983 (or 3970 counting only the distinct ones).

The product of its digits is 376320, while the sum is 47.

The square root of 478816715 is about 21881.8809749071. The cubic root of 478816715 is about 782.3296093526.

The spelling of 478816715 in words is "four hundred seventy-eight million, eight hundred sixteen thousand, seven hundred fifteen".