9956825 has 6 divisors (see below), whose sum is σ = 12346494. Its totient is φ = 7965440.

The previous prime is 9956819. The next prime is 9956867. The reversal of 9956825 is 5286599.

It can be written as a sum of positive squares in 3 ways, for example, as 153664 + 9803161 = 392^2 + 3131^2 .

It is not a de Polignac number, because 9956825 - 2⁶ = 9956761 is a prime.

It is a Duffinian number.

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, 199112 + ... + 199161.

It is an arithmetic number, because the mean of its divisors is an integer number (2057749).

Almost surely, 2^9956825 is an apocalyptic number.

It is an amenable number.

9956825 is a deficient number, since it is larger than the sum of its proper divisors (2389669).

9956825 is a wasteful number, since it uses less digits than its factorization.

9956825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 398283 (or 398278 counting only the distinct ones).

The product of its digits is 194400, while the sum is 44.

The square root of 9956825 is about 3155.4437088942. The cubic root of 9956825 is about 215.1329626440.

The spelling of 9956825 in words is "nine million, nine hundred fifty-six thousand, eight hundred twenty-five".