272423317 has 4 divisors (see below), whose sum is σ = 288448236. Its totient is φ = 256398400.

The previous prime is 272423309. The next prime is 272423323. The reversal of 272423317 is 713324272.

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 251983876 + 20439441 = 15874^2 + 4521^2 .

It is a cyclic number.

It is not a de Polignac number, because 272423317 - 2³ = 272423309 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (272423357) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8012434 + ... + 8012467.

It is an arithmetic number, because the mean of its divisors is an integer number (72112059).

Almost surely, 2^272423317 is an apocalyptic number.

It is an amenable number.

272423317 is a deficient number, since it is larger than the sum of its proper divisors (16024919).

272423317 is a wasteful number, since it uses less digits than its factorization.

272423317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16024918.

The product of its digits is 14112, while the sum is 31.

The square root of 272423317 is about 16505.2511946956. The cubic root of 272423317 is about 648.2583092579.

Adding to 272423317 its reverse (713324272), we get a palindrome (985747589).

The spelling of 272423317 in words is "two hundred seventy-two million, four hundred twenty-three thousand, three hundred seventeen".