6573997 has 2 divisors, whose sum is σ = 6573998. Its totient is φ = 6573996.

The previous prime is 6573979. The next prime is 6574003. The reversal of 6573997 is 7993756.

Together with previous prime (6573979) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5148361 + 1425636 = 2269^2 + 1194^2 .

It is a cyclic number.

It is not a de Polignac number, because 6573997 - 2¹⁵ = 6541229 is a prime.

It is a super-3 number, since 3×6573997³ (a number of 21 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6573907) 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 as a sum of consecutive naturals, namely, 3286998 + 3286999.

It is an arithmetic number, because the mean of its divisors is an integer number (3286999).

Almost surely, 2^6573997 is an apocalyptic number.

It is an amenable number.

6573997 is a deficient number, since it is larger than the sum of its proper divisors (1).

6573997 is an equidigital number, since it uses as much as digits as its factorization.

6573997 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 357210, while the sum is 46.

The square root of 6573997 is about 2563.9806941551. The cubic root of 6573997 is about 187.3310786770.

The spelling of 6573997 in words is "six million, five hundred seventy-three thousand, nine hundred ninety-seven".