7288993 has 2 divisors, whose sum is σ = 7288994. Its totient is φ = 7288992.

The previous prime is 7288979. The next prime is 7289003. The reversal of 7288993 is 3998827.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6411024 + 877969 = 2532^2 + 937^2 .

It is a cyclic number.

It is not a de Polignac number, because 7288993 - 2⁹ = 7288481 is a prime.

It is not a weakly prime, because it can be changed into another prime (7288933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3644496 + 3644497.

It is an arithmetic number, because the mean of its divisors is an integer number (3644497).

Almost surely, 2^7288993 is an apocalyptic number.

It is an amenable number.

7288993 is a deficient number, since it is larger than the sum of its proper divisors (1).

7288993 is an equidigital number, since it uses as much as digits as its factorization.

7288993 is an evil number, because the sum of its binary digits is even.

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

The square root of 7288993 is about 2699.8135120782. The cubic root of 7288993 is about 193.8901936435.

It can be divided in two parts, 7288 and 993, that added together give a square (8281 = 91²).

The spelling of 7288993 in words is "seven million, two hundred eighty-eight thousand, nine hundred ninety-three".