272199979 has 2 divisors, whose sum is σ = 272199980. Its totient is φ = 272199978.

The previous prime is 272199953. The next prime is 272200031. The reversal of 272199979 is 979991272.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-272199979 is a prime.

It is not a weakly prime, because it can be changed into another prime (272199919) 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 as a sum of consecutive naturals, namely, 136099989 + 136099990.

It is an arithmetic number, because the mean of its divisors is an integer number (136099990).

Almost surely, 2^272199979 is an apocalyptic number.

272199979 is a deficient number, since it is larger than the sum of its proper divisors (1).

272199979 is an equidigital number, since it uses as much as digits as its factorization.

272199979 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1285956, while the sum is 55.

The square root of 272199979 is about 16498.4841424902. The cubic root of 272199979 is about 648.0811091825.

The spelling of 272199979 in words is "two hundred seventy-two million, one hundred ninety-nine thousand, nine hundred seventy-nine".