477320761 has 2 divisors, whose sum is σ = 477320762. Its totient is φ = 477320760.

The previous prime is 477320759. The next prime is 477320777. The reversal of 477320761 is 167023774.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 476767225 + 553536 = 21835^2 + 744^2 .

It is a cyclic number.

It is not a de Polignac number, because 477320761 - 2¹ = 477320759 is a prime.

Together with 477320759, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 477320761.

It is not a weakly prime, because it can be changed into another prime (477324761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 238660380 + 238660381.

It is an arithmetic number, because the mean of its divisors is an integer number (238660381).

Almost surely, 2^477320761 is an apocalyptic number.

It is an amenable number.

477320761 is a deficient number, since it is larger than the sum of its proper divisors (1).

477320761 is an equidigital number, since it uses as much as digits as its factorization.

477320761 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 49392, while the sum is 37.

The square root of 477320761 is about 21847.6717523859. The cubic root of 477320761 is about 781.5140223714.

The spelling of 477320761 in words is "four hundred seventy-seven million, three hundred twenty thousand, seven hundred sixty-one".