478484657 has 16 divisors (see below), whose sum is σ = 587376000. Its totient is φ = 388538640.

The previous prime is 478484651. The next prime is 478484687. The reversal of 478484657 is 756484874.

It is not a de Polignac number, because 478484657 - 2⁴ = 478484641 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 478484599 and 478484608.

It is not an unprimeable number, because it can be changed into a prime (478484651) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30194 + ... + 43227.

It is an arithmetic number, because the mean of its divisors is an integer number (36711000).

Almost surely, 2^478484657 is an apocalyptic number.

It is an amenable number.

478484657 is a deficient number, since it is larger than the sum of its proper divisors (108891343).

478484657 is an equidigital number, since it uses as much as digits as its factorization.

478484657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73461 (or 73447 counting only the distinct ones).

The product of its digits is 6021120, while the sum is 53.

The square root of 478484657 is about 21874.2921485473. The cubic root of 478484657 is about 782.1487197607.

The spelling of 478484657 in words is "four hundred seventy-eight million, four hundred eighty-four thousand, six hundred fifty-seven".