476811947 has 2 divisors, whose sum is σ = 476811948. Its totient is φ = 476811946.

The previous prime is 476811943. The next prime is 476811949. The reversal of 476811947 is 749118674.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 476811947 - 2² = 476811943 is a prime.

Together with 476811949, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (476811943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 238405973 + 238405974.

It is an arithmetic number, because the mean of its divisors is an integer number (238405974).

Almost surely, 2^476811947 is an apocalyptic number.

476811947 is a deficient number, since it is larger than the sum of its proper divisors (1).

476811947 is an equidigital number, since it uses as much as digits as its factorization.

476811947 is an evil number, because the sum of its binary digits is even.

The product of its digits is 338688, while the sum is 47.

The square root of 476811947 is about 21836.0240657497. The cubic root of 476811947 is about 781.2362310789.

The spelling of 476811947 in words is "four hundred seventy-six million, eight hundred eleven thousand, nine hundred forty-seven".