7273249 has 2 divisors, whose sum is σ = 7273250. Its totient is φ = 7273248.

The previous prime is 7273241. The next prime is 7273283. The reversal of 7273249 is 9423727.

It is an a-pointer prime, because the next prime (7273283) can be obtained adding 7273249 to its sum of digits (34).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5499025 + 1774224 = 2345^2 + 1332^2 .

It is a cyclic number.

It is not a de Polignac number, because 7273249 - 2³ = 7273241 is a prime.

It is not a weakly prime, because it can be changed into another prime (7273241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3636624 + 3636625.

It is an arithmetic number, because the mean of its divisors is an integer number (3636625).

Almost surely, 2^7273249 is an apocalyptic number.

It is an amenable number.

7273249 is a deficient number, since it is larger than the sum of its proper divisors (1).

7273249 is an equidigital number, since it uses as much as digits as its factorization.

7273249 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21168, while the sum is 34.

The square root of 7273249 is about 2696.8961789435. The cubic root of 7273249 is about 193.7504940674.

The spelling of 7273249 in words is "seven million, two hundred seventy-three thousand, two hundred forty-nine".