6994438249 has 8 divisors (see below), whose sum is σ = 7129234440. Its totient is φ = 6859746816.

The previous prime is 6994438219. The next prime is 6994438307. The reversal of 6994438249 is 9428344996.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 647448025 + 6346990224 = 25445^2 + 79668^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6994438249 - 2²³ = 6986049641 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6994438193 and 6994438202.

It is not an unprimeable number, because it can be changed into a prime (6994438219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 115987 + ... + 165655.

It is an arithmetic number, because the mean of its divisors is an integer number (891154305).

Almost surely, 2^6994438249 is an apocalyptic number.

It is an amenable number.

6994438249 is a deficient number, since it is larger than the sum of its proper divisors (134796191).

6994438249 is a wasteful number, since it uses less digits than its factorization.

6994438249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52379.

The product of its digits is 13436928, while the sum is 58.

The square root of 6994438249 is about 83632.7582290576. The cubic root of 6994438249 is about 1912.4244177287.

The spelling of 6994438249 in words is "six billion, nine hundred ninety-four million, four hundred thirty-eight thousand, two hundred forty-nine".