978652625 has 8 divisors (see below), whose sum is σ = 1221358632. Its totient is φ = 782922000.

The previous prime is 978652573. The next prime is 978652637. The reversal of 978652625 is 526256879.

978652625 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 4 ways, for example, as 24522304 + 954130321 = 4952^2 + 30889^2 .

It is not a de Polignac number, because 978652625 - 2⁶ = 978652561 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3914486 + ... + 3914735.

It is an arithmetic number, because the mean of its divisors is an integer number (152669829).

Almost surely, 2^978652625 is an apocalyptic number.

It is an amenable number.

978652625 is a deficient number, since it is larger than the sum of its proper divisors (242706007).

978652625 is an equidigital number, since it uses as much as digits as its factorization.

978652625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7829236 (or 7829226 counting only the distinct ones).

The product of its digits is 1814400, while the sum is 50.

The square root of 978652625 is about 31283.4241252456. The cubic root of 978652625 is about 992.8329646526.

The spelling of 978652625 in words is "nine hundred seventy-eight million, six hundred fifty-two thousand, six hundred twenty-five".