6984172049 has 4 divisors (see below), whose sum is σ = 6986827236. Its totient is φ = 6981516864.

The previous prime is 6984172037. The next prime is 6984172073. The reversal of 6984172049 is 9402714896.

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

It can be written as a sum of positive squares in 2 ways, for example, as 3704548225 + 3279623824 = 60865^2 + 57268^2 .

It is a cyclic number.

It is not a de Polignac number, because 6984172049 - 2⁸ = 6984171793 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6984171988 and 6984172006.

It is not an unprimeable number, because it can be changed into a prime (6984172099) 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, 1323644 + ... + 1328909.

It is an arithmetic number, because the mean of its divisors is an integer number (1746706809).

Almost surely, 2^6984172049 is an apocalyptic number.

It is an amenable number.

6984172049 is a deficient number, since it is larger than the sum of its proper divisors (2655187).

6984172049 is a wasteful number, since it uses less digits than its factorization.

6984172049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2655186.

The product of its (nonzero) digits is 870912, while the sum is 50.

The square root of 6984172049 is about 83571.3590232922. The cubic root of 6984172049 is about 1911.4882956075.

The spelling of 6984172049 in words is "six billion, nine hundred eighty-four million, one hundred seventy-two thousand, forty-nine".