477447643 has 2 divisors, whose sum is σ = 477447644. Its totient is φ = 477447642.

The previous prime is 477447631. The next prime is 477447673. The reversal of 477447643 is 346744774.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 477447643 - 2⁵ = 477447611 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 477447593 and 477447602.

It is not a weakly prime, because it can be changed into another prime (477447673) 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, 238723821 + 238723822.

It is an arithmetic number, because the mean of its divisors is an integer number (238723822).

Almost surely, 2^477447643 is an apocalyptic number.

477447643 is a deficient number, since it is larger than the sum of its proper divisors (1).

477447643 is an equidigital number, since it uses as much as digits as its factorization.

477447643 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1580544, while the sum is 46.

The square root of 477447643 is about 21850.5753471161. The cubic root of 477447643 is about 781.5832639139.

The spelling of 477447643 in words is "four hundred seventy-seven million, four hundred forty-seven thousand, six hundred forty-three".