478046677 has 2 divisors, whose sum is σ = 478046678. Its totient is φ = 478046676.

The previous prime is 478046671. The next prime is 478046689. The reversal of 478046677 is 776640874.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 400360081 + 77686596 = 20009^2 + 8814^2 .

It is a cyclic number.

It is not a de Polignac number, because 478046677 - 2¹¹ = 478044629 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 478046677.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (478046671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 239023338 + 239023339.

It is an arithmetic number, because the mean of its divisors is an integer number (239023339).

Almost surely, 2^478046677 is an apocalyptic number.

It is an amenable number.

478046677 is a deficient number, since it is larger than the sum of its proper divisors (1).

478046677 is an equidigital number, since it uses as much as digits as its factorization.

478046677 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1580544, while the sum is 49.

The square root of 478046677 is about 21864.2785611600. The cubic root of 478046677 is about 781.9100008059.

The spelling of 478046677 in words is "four hundred seventy-eight million, forty-six thousand, six hundred seventy-seven".