6997355847 has 12 divisors (see below), whose sum is σ = 10108193784. Its totient is φ = 4664487600.

The previous prime is 6997355821. The next prime is 6997355863. The reversal of 6997355847 is 7485537996.

6997355847 is a `hidden beast` number, since 6 + 9 + 9 + 73 + 558 + 4 + 7 = 666.

It is not a de Polignac number, because 6997355847 - 2⁸ = 6997355591 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6997355147) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 98793 + ... + 154125.

It is an arithmetic number, because the mean of its divisors is an integer number (842349482).

Almost surely, 2^6997355847 is an apocalyptic number.

6997355847 is a deficient number, since it is larger than the sum of its proper divisors (3110837937).

6997355847 is a wasteful number, since it uses less digits than its factorization.

6997355847 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69390 (or 69387 counting only the distinct ones).

The product of its digits is 57153600, while the sum is 63.

The square root of 6997355847 is about 83650.1993243292. The cubic root of 6997355847 is about 1912.6902913565.

The spelling of 6997355847 in words is "six billion, nine hundred ninety-seven million, three hundred fifty-five thousand, eight hundred forty-seven".