6994006731 has 6 divisors (see below), whose sum is σ = 10102454180. Its totient is φ = 4662671148.

The previous prime is 6994006729. The next prime is 6994006777. The reversal of 6994006731 is 1376004996.

It is not a de Polignac number, because 6994006731 - 2¹ = 6994006729 is a prime.

It is a super-2 number, since 2×6994006731² = 97832260306546612722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6994006711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 388555921 + ... + 388555938.

Almost surely, 2^6994006731 is an apocalyptic number.

6994006731 is a deficient number, since it is larger than the sum of its proper divisors (3108447449).

6994006731 is a wasteful number, since it uses less digits than its factorization.

6994006731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 777111865 (or 777111862 counting only the distinct ones).

The product of its (nonzero) digits is 244944, while the sum is 45.

The square root of 6994006731 is about 83630.1783508800. The cubic root of 6994006731 is about 1912.3850882642.

The spelling of 6994006731 in words is "six billion, nine hundred ninety-four million, six thousand, seven hundred thirty-one".