7272493 has 2 divisors, whose sum is σ = 7272494. Its totient is φ = 7272492.

The previous prime is 7272491. The next prime is 7272509. The reversal of 7272493 is 3942727.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5207524 + 2064969 = 2282^2 + 1437^2 .

It is an emirp because it is prime and its reverse (3942727) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7272493 - 2¹ = 7272491 is a prime.

Together with 7272491, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7272491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3636246 + 3636247.

It is an arithmetic number, because the mean of its divisors is an integer number (3636247).

Almost surely, 2^7272493 is an apocalyptic number.

It is an amenable number.

7272493 is a deficient number, since it is larger than the sum of its proper divisors (1).

7272493 is an equidigital number, since it uses as much as digits as its factorization.

7272493 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 7272493 is about 2696.7560141770. The cubic root of 7272493 is about 193.7437808618.

The spelling of 7272493 in words is "seven million, two hundred seventy-two thousand, four hundred ninety-three".