6985625947 has 2 divisors, whose sum is σ = 6985625948. Its totient is φ = 6985625946.

The previous prime is 6985625923. The next prime is 6985625951. The reversal of 6985625947 is 7495265896.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6985625947 - 2⁷ = 6985625819 is a prime.

It is not a weakly prime, because it can be changed into another prime (6985625917) 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 as a sum of consecutive naturals, namely, 3492812973 + 3492812974.

It is an arithmetic number, because the mean of its divisors is an integer number (3492812974).

Almost surely, 2^6985625947 is an apocalyptic number.

6985625947 is a deficient number, since it is larger than the sum of its proper divisors (1).

6985625947 is an equidigital number, since it uses as much as digits as its factorization.

6985625947 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 32659200, while the sum is 61.

The square root of 6985625947 is about 83580.0571129262. The cubic root of 6985625947 is about 1911.6209248426.

The spelling of 6985625947 in words is "six billion, nine hundred eighty-five million, six hundred twenty-five thousand, nine hundred forty-seven".