479549813 has 2 divisors, whose sum is σ = 479549814. Its totient is φ = 479549812.

The previous prime is 479549783. The next prime is 479549827. The reversal of 479549813 is 318945974.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 341769169 + 137780644 = 18487^2 + 11738^2 .

It is a cyclic number.

It is not a de Polignac number, because 479549813 - 2²⁶ = 412440949 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (479545813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 239774906 + 239774907.

It is an arithmetic number, because the mean of its divisors is an integer number (239774907).

Almost surely, 2^479549813 is an apocalyptic number.

It is an amenable number.

479549813 is a deficient number, since it is larger than the sum of its proper divisors (1).

479549813 is an equidigital number, since it uses as much as digits as its factorization.

479549813 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1088640, while the sum is 50.

The square root of 479549813 is about 21898.6258244667. The cubic root of 479549813 is about 782.7286707627.

The spelling of 479549813 in words is "four hundred seventy-nine million, five hundred forty-nine thousand, eight hundred thirteen".