7285997 has 2 divisors, whose sum is σ = 7285998. Its totient is φ = 7285996.

The previous prime is 7285981. The next prime is 7286011. The reversal of 7285997 is 7995827.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4932841 + 2353156 = 2221^2 + 1534^2 .

It is a cyclic number.

It is not a de Polignac number, because 7285997 - 2⁴ = 7285981 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7285907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3642998 + 3642999.

It is an arithmetic number, because the mean of its divisors is an integer number (3642999).

Almost surely, 2^7285997 is an apocalyptic number.

It is an amenable number.

7285997 is a deficient number, since it is larger than the sum of its proper divisors (1).

7285997 is an equidigital number, since it uses as much as digits as its factorization.

7285997 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 317520, while the sum is 47.

The square root of 7285997 is about 2699.2586019128. The cubic root of 7285997 is about 193.8636250614.

The spelling of 7285997 in words is "seven million, two hundred eighty-five thousand, nine hundred ninety-seven".