7264889 has 2 divisors, whose sum is σ = 7264890. Its totient is φ = 7264888.

The previous prime is 7264871. The next prime is 7264903. The reversal of 7264889 is 9884627.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6786025 + 478864 = 2605^2 + 692^2 .

It is an emirp because it is prime and its reverse (9884627) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7264889 is a prime.

It is a super-2 number, since 2×7264889² = 105557224364642, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (7264189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3632444 + 3632445.

It is an arithmetic number, because the mean of its divisors is an integer number (3632445).

Almost surely, 2^7264889 is an apocalyptic number.

It is an amenable number.

7264889 is a deficient number, since it is larger than the sum of its proper divisors (1).

7264889 is an equidigital number, since it uses as much as digits as its factorization.

7264889 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 193536, while the sum is 44.

The square root of 7264889 is about 2695.3458034174. The cubic root of 7264889 is about 193.6762322019.

The spelling of 7264889 in words is "seven million, two hundred sixty-four thousand, eight hundred eighty-nine".