478242773 has 2 divisors, whose sum is σ = 478242774. Its totient is φ = 478242772.

The previous prime is 478242769. The next prime is 478242811. The reversal of 478242773 is 377242874.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 477990769 + 252004 = 21863^2 + 502^2 .

It is a cyclic number.

It is not a de Polignac number, because 478242773 - 2² = 478242769 is a prime.

It is a super-2 number, since 2×478242773² = 457432299853459058, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (478242733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 239121386 + 239121387.

It is an arithmetic number, because the mean of its divisors is an integer number (239121387).

Almost surely, 2^478242773 is an apocalyptic number.

It is an amenable number.

478242773 is a deficient number, since it is larger than the sum of its proper divisors (1).

478242773 is an equidigital number, since it uses as much as digits as its factorization.

478242773 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 526848, while the sum is 44.

The square root of 478242773 is about 21868.7624935660. The cubic root of 478242773 is about 782.0169000344.

The spelling of 478242773 in words is "four hundred seventy-eight million, two hundred forty-two thousand, seven hundred seventy-three".