272309897 has 4 divisors (see below), whose sum is σ = 272381076. Its totient is φ = 272238720.

The previous prime is 272309879. The next prime is 272309911. The reversal of 272309897 is 798903272.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 136913401 + 135396496 = 11701^2 + 11636^2 .

It is a cyclic number.

It is not a de Polignac number, because 272309897 - 2²⁰ = 271261321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (272302897) 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 3 ways as a sum of consecutive naturals, for example, 29504 + ... + 37617.

It is an arithmetic number, because the mean of its divisors is an integer number (68095269).

Almost surely, 2^272309897 is an apocalyptic number.

It is an amenable number.

272309897 is a deficient number, since it is larger than the sum of its proper divisors (71179).

272309897 is an equidigital number, since it uses as much as digits as its factorization.

272309897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71178.

The product of its (nonzero) digits is 381024, while the sum is 47.

The square root of 272309897 is about 16501.8149607854. The cubic root of 272309897 is about 648.1683320558.

The spelling of 272309897 in words is "two hundred seventy-two million, three hundred nine thousand, eight hundred ninety-seven".