6729997 has 4 divisors (see below), whose sum is σ = 6736096. Its totient is φ = 6723900.

The previous prime is 6729991. The next prime is 6730033. The reversal of 6729997 is 7999276.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 6729997 - 2¹¹ = 6727949 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6729997.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6729991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 879 + ... + 3772.

It is an arithmetic number, because the mean of its divisors is an integer number (1684024).

Almost surely, 2^6729997 is an apocalyptic number.

It is an amenable number.

6729997 is a deficient number, since it is larger than the sum of its proper divisors (6099).

6729997 is a wasteful number, since it uses less digits than its factorization.

6729997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6098.

The product of its digits is 428652, while the sum is 49.

The square root of 6729997 is about 2594.2237760070. The cubic root of 6729997 is about 188.8012898055.

The spelling of 6729997 in words is "six million, seven hundred twenty-nine thousand, nine hundred ninety-seven".