978753625 has 16 divisors (see below), whose sum is σ = 1263609360. Its totient is φ = 756000000.

The previous prime is 978753613. The next prime is 978753647. The reversal of 978753625 is 526357879.

978753625 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 306285001 + 672468624 = 17501^2 + 25932^2 .

It is not a de Polignac number, because 978753625 - 2⁷ = 978753497 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 131376 + ... + 138625.

It is an arithmetic number, because the mean of its divisors is an integer number (78975585).

Almost surely, 2^978753625 is an apocalyptic number.

It is an amenable number.

978753625 is a deficient number, since it is larger than the sum of its proper divisors (284855735).

978753625 is a wasteful number, since it uses less digits than its factorization.

978753625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270045 (or 270035 counting only the distinct ones).

The product of its digits is 3175200, while the sum is 52.

The square root of 978753625 is about 31285.0383570166. The cubic root of 978753625 is about 992.8671179628.

The spelling of 978753625 in words is "nine hundred seventy-eight million, seven hundred fifty-three thousand, six hundred twenty-five".