727821255 has 96 divisors (see below), whose sum is σ = 1481379840. Its totient is φ = 302883840.

The previous prime is 727821229. The next prime is 727821257. The reversal of 727821255 is 552128727.

It is not a de Polignac number, because 727821255 - 2⁸ = 727820999 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (727821257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 386406 + ... + 388284.

It is an arithmetic number, because the mean of its divisors is an integer number (15431040).

Almost surely, 2^727821255 is an apocalyptic number.

727821255 is an abundant number, since it is smaller than the sum of its proper divisors (753558585).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

727821255 is a wasteful number, since it uses less digits than its factorization.

727821255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1949 (or 1942 counting only the distinct ones).

The product of its digits is 78400, while the sum is 39.

The square root of 727821255 is about 26978.1625578912. The cubic root of 727821255 is about 899.5146580704.

The spelling of 727821255 in words is "seven hundred twenty-seven million, eight hundred twenty-one thousand, two hundred fifty-five".