7289893 has 4 divisors (see below), whose sum is σ = 7850668. Its totient is φ = 6729120.

The previous prime is 7289861. The next prime is 7289911. The reversal of 7289893 is 3989827.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3989827 = 61 ⋅65407.

It can be written as a sum of positive squares in 2 ways, for example, as 4251844 + 3038049 = 2062^2 + 1743^2 .

It is a cyclic number.

It is not a de Polignac number, because 7289893 - 2⁵ = 7289861 is a prime.

It is a Duffinian number.

7289893 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7289813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 280368 + ... + 280393.

It is an arithmetic number, because the mean of its divisors is an integer number (1962667).

Almost surely, 2^7289893 is an apocalyptic number.

It is an amenable number.

7289893 is a deficient number, since it is larger than the sum of its proper divisors (560775).

7289893 is a wasteful number, since it uses less digits than its factorization.

7289893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 560774.

The product of its digits is 217728, while the sum is 46.

The square root of 7289893 is about 2699.9801851125. The cubic root of 7289893 is about 193.8981734377.

The spelling of 7289893 in words is "seven million, two hundred eighty-nine thousand, eight hundred ninety-three".