477653509 has 2 divisors, whose sum is σ = 477653510. Its totient is φ = 477653508.

The previous prime is 477653497. The next prime is 477653551. The reversal of 477653509 is 905356774.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 400600225 + 77053284 = 20015^2 + 8778^2 .

It is a cyclic number.

It is not a de Polignac number, because 477653509 - 2²¹ = 475556357 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (477653569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 238826754 + 238826755.

It is an arithmetic number, because the mean of its divisors is an integer number (238826755).

Almost surely, 2^477653509 is an apocalyptic number.

It is an amenable number.

477653509 is a deficient number, since it is larger than the sum of its proper divisors (1).

477653509 is an equidigital number, since it uses as much as digits as its factorization.

477653509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 793800, while the sum is 46.

The square root of 477653509 is about 21855.2856078341. The cubic root of 477653509 is about 781.6955821979.

It can be divided in two parts, 4776 and 53509, that added together give a palindrome (58285).

The spelling of 477653509 in words is "four hundred seventy-seven million, six hundred fifty-three thousand, five hundred nine".