6989984725 has 12 divisors (see below), whose sum is σ = 8694933444. Its totient is φ = 5574341120.

The previous prime is 6989984699. The next prime is 6989984731. The reversal of 6989984725 is 5274899896.

It can be written as a sum of positive squares in 6 ways, for example, as 2365168689 + 4624816036 = 48633^2 + 68006^2 .

It is not a de Polignac number, because 6989984725 - 2⁷ = 6989984597 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 433084 + ... + 448933.

It is an arithmetic number, because the mean of its divisors is an integer number (724577787).

Almost surely, 2^6989984725 is an apocalyptic number.

It is an amenable number.

6989984725 is a deficient number, since it is larger than the sum of its proper divisors (1704948719).

6989984725 is a wasteful number, since it uses less digits than its factorization.

6989984725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 882344 (or 882339 counting only the distinct ones).

The product of its digits is 78382080, while the sum is 67.

The square root of 6989984725 is about 83606.1285134050. The cubic root of 6989984725 is about 1912.0184362882.

The spelling of 6989984725 in words is "six billion, nine hundred eighty-nine million, nine hundred eighty-four thousand, seven hundred twenty-five".