476447813 has 2 divisors, whose sum is σ = 476447814. Its totient is φ = 476447812.

The previous prime is 476447809. The next prime is 476447863. The reversal of 476447813 is 318744674.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 431060644 + 45387169 = 20762^2 + 6737^2 .

It is a cyclic number.

It is not a de Polignac number, because 476447813 - 2² = 476447809 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (476447863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 238223906 + 238223907.

It is an arithmetic number, because the mean of its divisors is an integer number (238223907).

Almost surely, 2^476447813 is an apocalyptic number.

It is an amenable number.

476447813 is a deficient number, since it is larger than the sum of its proper divisors (1).

476447813 is an equidigital number, since it uses as much as digits as its factorization.

476447813 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 451584, while the sum is 44.

The square root of 476447813 is about 21827.6845542536. The cubic root of 476447813 is about 781.0373077070.

The spelling of 476447813 in words is "four hundred seventy-six million, four hundred forty-seven thousand, eight hundred thirteen".