476711993 has 2 divisors, whose sum is σ = 476711994. Its totient is φ = 476711992.

The previous prime is 476711987. The next prime is 476712059. The reversal of 476711993 is 399117674.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 472975504 + 3736489 = 21748^2 + 1933^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-476711993 is a prime.

It is not a weakly prime, because it can be changed into another prime (476711933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 238355996 + 238355997.

It is an arithmetic number, because the mean of its divisors is an integer number (238355997).

Almost surely, 2^476711993 is an apocalyptic number.

It is an amenable number.

476711993 is a deficient number, since it is larger than the sum of its proper divisors (1).

476711993 is an equidigital number, since it uses as much as digits as its factorization.

476711993 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 285768, while the sum is 47.

The square root of 476711993 is about 21833.7352049529. The cubic root of 476711993 is about 781.1816371285.

The spelling of 476711993 in words is "four hundred seventy-six million, seven hundred eleven thousand, nine hundred ninety-three".