480777839 has 2 divisors, whose sum is σ = 480777840. Its totient is φ = 480777838.

The previous prime is 480777769. The next prime is 480777887. The reversal of 480777839 is 938777084.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-480777839 is a prime.

It is a super-3 number, since 3×480777839³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (480777239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 240388919 + 240388920.

It is an arithmetic number, because the mean of its divisors is an integer number (240388920).

Almost surely, 2^480777839 is an apocalyptic number.

480777839 is a deficient number, since it is larger than the sum of its proper divisors (1).

480777839 is an equidigital number, since it uses as much as digits as its factorization.

480777839 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2370816, while the sum is 53.

The square root of 480777839 is about 21926.6467796606. The cubic root of 480777839 is about 783.3962356409.

The spelling of 480777839 in words is "four hundred eighty million, seven hundred seventy-seven thousand, eight hundred thirty-nine".