485564839 has 2 divisors, whose sum is σ = 485564840. Its totient is φ = 485564838.

The previous prime is 485564791. The next prime is 485564843. The reversal of 485564839 is 938465584.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 485564839 - 2⁷ = 485564711 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (485567839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 242782419 + 242782420.

It is an arithmetic number, because the mean of its divisors is an integer number (242782420).

Almost surely, 2^485564839 is an apocalyptic number.

485564839 is a deficient number, since it is larger than the sum of its proper divisors (1).

485564839 is an equidigital number, since it uses as much as digits as its factorization.

485564839 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4147200, while the sum is 52.

The square root of 485564839 is about 22035.5358228476. The cubic root of 485564839 is about 785.9876888394.

The spelling of 485564839 in words is "four hundred eighty-five million, five hundred sixty-four thousand, eight hundred thirty-nine".