478320683 has 2 divisors, whose sum is σ = 478320684. Its totient is φ = 478320682.

The previous prime is 478320679. The next prime is 478320743. The reversal of 478320683 is 386023874.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 478320683 - 2² = 478320679 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 478320683.

It is not a weakly prime, because it can be changed into another prime (478320643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 239160341 + 239160342.

It is an arithmetic number, because the mean of its divisors is an integer number (239160342).

Almost surely, 2^478320683 is an apocalyptic number.

478320683 is a deficient number, since it is larger than the sum of its proper divisors (1).

478320683 is an equidigital number, since it uses as much as digits as its factorization.

478320683 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 193536, while the sum is 41.

The square root of 478320683 is about 21870.5437289520. The cubic root of 478320683 is about 782.0593635640.

The spelling of 478320683 in words is "four hundred seventy-eight million, three hundred twenty thousand, six hundred eighty-three".