6997759 has 4 divisors (see below), whose sum is σ = 7003080. Its totient is φ = 6992440.

The previous prime is 6997747. The next prime is 6997789. The reversal of 6997759 is 9577996.

It is a semiprime because it is the product of two primes, 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 6997759 - 2⁷ = 6997631 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6997789) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 912 + ... + 3850.

It is an arithmetic number, because the mean of its divisors is an integer number (1750770).

Almost surely, 2^6997759 is an apocalyptic number.

6997759 is a deficient number, since it is larger than the sum of its proper divisors (5321).

6997759 is a wasteful number, since it uses less digits than its factorization.

6997759 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5320.

The product of its digits is 1071630, while the sum is 52.

The square root of 6997759 is about 2645.3277679713. The cubic root of 6997759 is about 191.2727023899.

The spelling of 6997759 in words is "six million, nine hundred ninety-seven thousand, seven hundred fifty-nine".