272747389 has 2 divisors, whose sum is σ = 272747390. Its totient is φ = 272747388.

The previous prime is 272747351. The next prime is 272747401. The reversal of 272747389 is 983747272.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 163712025 + 109035364 = 12795^2 + 10442^2 .

It is a cyclic number.

It is not a de Polignac number, because 272747389 - 2¹³ = 272739197 is a prime.

It is a super-2 number, since 2×272747389² = 148782276412634642, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (272747989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 136373694 + 136373695.

It is an arithmetic number, because the mean of its divisors is an integer number (136373695).

Almost surely, 2^272747389 is an apocalyptic number.

It is an amenable number.

272747389 is a deficient number, since it is larger than the sum of its proper divisors (1).

272747389 is an equidigital number, since it uses as much as digits as its factorization.

272747389 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1185408, while the sum is 49.

The square root of 272747389 is about 16515.0655160674. The cubic root of 272747389 is about 648.5152612205.

The spelling of 272747389 in words is "two hundred seventy-two million, seven hundred forty-seven thousand, three hundred eighty-nine".