272805979 has 2 divisors, whose sum is σ = 272805980. Its totient is φ = 272805978.

The previous prime is 272805959. The next prime is 272805991. The reversal of 272805979 is 979508272.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 272805979 - 2¹³ = 272797787 is a prime.

It is not a weakly prime, because it can be changed into another prime (272805959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 136402989 + 136402990.

It is an arithmetic number, because the mean of its divisors is an integer number (136402990).

Almost surely, 2^272805979 is an apocalyptic number.

272805979 is a deficient number, since it is larger than the sum of its proper divisors (1).

272805979 is an equidigital number, since it uses as much as digits as its factorization.

272805979 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 635040, while the sum is 49.

The square root of 272805979 is about 16516.8392557414. The cubic root of 272805979 is about 648.5616946485.

The spelling of 272805979 in words is "two hundred seventy-two million, eight hundred five thousand, nine hundred seventy-nine".