6997247 has 4 divisors (see below), whose sum is σ = 7006536. Its totient is φ = 6987960.

The previous prime is 6997231. The next prime is 6997253. The reversal of 6997247 is 7427996.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6997247 - 2⁴ = 6997231 is a prime.

It is a super-2 number, since 2×6997247² = 97922931158018, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6997198 and 6997207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6997147) 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, 3404 + ... + 5057.

It is an arithmetic number, because the mean of its divisors is an integer number (1751634).

Almost surely, 2^6997247 is an apocalyptic number.

6997247 is a deficient number, since it is larger than the sum of its proper divisors (9289).

6997247 is an equidigital number, since it uses as much as digits as its factorization.

6997247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9288.

The product of its digits is 190512, while the sum is 44.

The square root of 6997247 is about 2645.2309918039. The cubic root of 6997247 is about 191.2680373721.

The spelling of 6997247 in words is "six million, nine hundred ninety-seven thousand, two hundred forty-seven".