6990393047 has 16 divisors (see below), whose sum is σ = 8122851072. Its totient is φ = 5945243520.

The previous prime is 6990393001. The next prime is 6990393089. The reversal of 6990393047 is 7403930996.

It is a happy number.

6990393047 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 6990393047 - 2¹⁰ = 6990392023 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6990392986 and 6990393004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6990393097) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80693 + ... + 143150.

It is an arithmetic number, because the mean of its divisors is an integer number (507678192).

Almost surely, 2^6990393047 is an apocalyptic number.

6990393047 is a deficient number, since it is larger than the sum of its proper divisors (1132458025).

6990393047 is a wasteful number, since it uses less digits than its factorization.

6990393047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224038.

The product of its (nonzero) digits is 1102248, while the sum is 50.

The square root of 6990393047 is about 83608.5704159568. The cubic root of 6990393047 is about 1912.0556659352.

The spelling of 6990393047 in words is "six billion, nine hundred ninety million, three hundred ninety-three thousand, forty-seven".