9947459425 has 6 divisors (see below), whose sum is σ = 12334849718. Its totient is φ = 7957967520.

The previous prime is 9947459377. The next prime is 9947459437. The reversal of 9947459425 is 5249547499.

It can be written as a sum of positive squares in 3 ways, for example, as 2840463616 + 7106995809 = 53296^2 + 84303^2 .

It is not a de Polignac number, because 9947459425 - 2⁷ = 9947459297 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 9947459425.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 198949164 + ... + 198949213.

Almost surely, 2^9947459425 is an apocalyptic number.

It is an amenable number.

9947459425 is a deficient number, since it is larger than the sum of its proper divisors (2387390293).

9947459425 is a wasteful number, since it uses less digits than its factorization.

9947459425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 397898387 (or 397898382 counting only the distinct ones).

The product of its digits is 16329600, while the sum is 58.

The square root of 9947459425 is about 99736.9511515166. The cubic root of 9947459425 is about 2150.6548879362.

The spelling of 9947459425 in words is "nine billion, nine hundred forty-seven million, four hundred fifty-nine thousand, four hundred twenty-five".