477166961 has 2 divisors, whose sum is σ = 477166962. Its totient is φ = 477166960.

The previous prime is 477166933. The next prime is 477166981. The reversal of 477166961 is 169661774.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 343879936 + 133287025 = 18544^2 + 11545^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-477166961 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (477166981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 238583480 + 238583481.

It is an arithmetic number, because the mean of its divisors is an integer number (238583481).

Almost surely, 2^477166961 is an apocalyptic number.

It is an amenable number.

477166961 is a deficient number, since it is larger than the sum of its proper divisors (1).

477166961 is an equidigital number, since it uses as much as digits as its factorization.

477166961 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 381024, while the sum is 47.

The square root of 477166961 is about 21844.1516429455. The cubic root of 477166961 is about 781.4300747911.

The spelling of 477166961 in words is "four hundred seventy-seven million, one hundred sixty-six thousand, nine hundred sixty-one".