272776813 has 16 divisors (see below), whose sum is σ = 290304000. Its totient is φ = 255848320.

The previous prime is 272776799. The next prime is 272776831. The reversal of 272776813 is 318677272.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-272776813 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 272776813.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (272776873) 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 15 ways as a sum of consecutive naturals, for example, 455088 + ... + 455686.

It is an arithmetic number, because the mean of its divisors is an integer number (18144000).

Almost surely, 2^272776813 is an apocalyptic number.

It is an amenable number.

272776813 is a deficient number, since it is larger than the sum of its proper divisors (17527187).

272776813 is a wasteful number, since it uses less digits than its factorization.

272776813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1052.

The product of its digits is 197568, while the sum is 43.

The square root of 272776813 is about 16515.9563150306. The cubic root of 272776813 is about 648.5385810000.

The spelling of 272776813 in words is "two hundred seventy-two million, seven hundred seventy-six thousand, eight hundred thirteen".