476650661 has 2 divisors, whose sum is σ = 476650662. Its totient is φ = 476650660.

The previous prime is 476650639. The next prime is 476650679. The reversal of 476650661 is 166056674.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 476548900 + 101761 = 21830^2 + 319^2 .

It is a cyclic number.

It is not a de Polignac number, because 476650661 - 2²² = 472456357 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (476650861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 238325330 + 238325331.

It is an arithmetic number, because the mean of its divisors is an integer number (238325331).

Almost surely, 2^476650661 is an apocalyptic number.

It is an amenable number.

476650661 is a deficient number, since it is larger than the sum of its proper divisors (1).

476650661 is an equidigital number, since it uses as much as digits as its factorization.

476650661 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 181440, while the sum is 41.

The square root of 476650661 is about 21832.3306360086. The cubic root of 476650661 is about 781.1481343793.

The spelling of 476650661 in words is "four hundred seventy-six million, six hundred fifty thousand, six hundred sixty-one".