485578913 has 2 divisors, whose sum is σ = 485578914. Its totient is φ = 485578912.

The previous prime is 485578903. The next prime is 485578937. The reversal of 485578913 is 319875584.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 419758144 + 65820769 = 20488^2 + 8113^2 .

It is a cyclic number.

It is not a de Polignac number, because 485578913 - 2⁸ = 485578657 is a prime.

It is not a weakly prime, because it can be changed into another prime (485578903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 242789456 + 242789457.

It is an arithmetic number, because the mean of its divisors is an integer number (242789457).

Almost surely, 2^485578913 is an apocalyptic number.

It is an amenable number.

485578913 is a deficient number, since it is larger than the sum of its proper divisors (1).

485578913 is an equidigital number, since it uses as much as digits as its factorization.

485578913 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1209600, while the sum is 50.

The square root of 485578913 is about 22035.8551683387. The cubic root of 485578913 is about 785.9952826648.

The spelling of 485578913 in words is "four hundred eighty-five million, five hundred seventy-eight thousand, nine hundred thirteen".