272789991 has 32 divisors (see below), whose sum is σ = 411264000. Its totient is φ = 178682400.

The previous prime is 272789989. The next prime is 272790013. The reversal of 272789991 is 199987272.

It is not a de Polignac number, because 272789991 - 2¹ = 272789989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (272789971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 455110 + ... + 455708.

It is an arithmetic number, because the mean of its divisors is an integer number (12852000).

Almost surely, 2^272789991 is an apocalyptic number.

272789991 is a deficient number, since it is larger than the sum of its proper divisors (138474009).

272789991 is a wasteful number, since it uses less digits than its factorization.

272789991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 876 (or 870 counting only the distinct ones).

The product of its digits is 1143072, while the sum is 54.

The square root of 272789991 is about 16516.3552577438. The cubic root of 272789991 is about 648.5490245854.

The spelling of 272789991 in words is "two hundred seventy-two million, seven hundred eighty-nine thousand, nine hundred ninety-one".