272621 has 2 divisors, whose sum is σ = 272622. Its totient is φ = 272620.

The previous prime is 272603. The next prime is 272651. The reversal of 272621 is 126272.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 265225 + 7396 = 515^2 + 86^2 .

It is a cyclic number.

It is not a de Polignac number, because 272621 - 2¹⁰ = 271597 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 272593 and 272602.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (272651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 136310 + 136311.

It is an arithmetic number, because the mean of its divisors is an integer number (136311).

2²⁷²⁶²¹ is an apocalyptic number.

It is an amenable number.

272621 is a deficient number, since it is larger than the sum of its proper divisors (1).

272621 is an equidigital number, since it uses as much as digits as its factorization.

272621 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 336, while the sum is 20.

The square root of 272621 is about 522.1312095633. The cubic root of 272621 is about 64.8415073449.

Adding to 272621 its reverse (126272), we get a palindrome (398893).

The spelling of 272621 in words is "two hundred seventy-two thousand, six hundred twenty-one".