272749747 has 2 divisors, whose sum is σ = 272749748. Its totient is φ = 272749746.

The previous prime is 272749721. The next prime is 272749781. The reversal of 272749747 is 747947272.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 272749747 - 2⁷ = 272749619 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 272749747.

It is not a weakly prime, because it can be changed into another prime (272749787) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 136374873 + 136374874.

It is an arithmetic number, because the mean of its divisors is an integer number (136374874).

Almost surely, 2^272749747 is an apocalyptic number.

272749747 is a deficient number, since it is larger than the sum of its proper divisors (1).

272749747 is an equidigital number, since it uses as much as digits as its factorization.

272749747 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1382976, while the sum is 49.

The square root of 272749747 is about 16515.1369052757. The cubic root of 272749747 is about 648.5171300983.

The spelling of 272749747 in words is "two hundred seventy-two million, seven hundred forty-nine thousand, seven hundred forty-seven".