800663625 has 24 divisors (see below), whose sum is σ = 1443331656. Its totient is φ = 427020000.

The previous prime is 800663597. The next prime is 800663627. The reversal of 800663625 is 526366008.

800663625 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 9 + 800663616 = 3^2 + 28296^2 .

It is not a de Polignac number, because 800663625 - 2⁵ = 800663593 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 800663625.

It is not an unprimeable number, because it can be changed into a prime (800663627) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 354726 + ... + 356975.

It is an arithmetic number, because the mean of its divisors is an integer number (60138819).

Almost surely, 2^800663625 is an apocalyptic number.

It is an amenable number.

800663625 is a deficient number, since it is larger than the sum of its proper divisors (642668031).

800663625 is a wasteful number, since it uses less digits than its factorization.

800663625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 711722 (or 711709 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 800663625 is about 28296.0001590331. Note that the first 3 decimals coincide. The cubic root of 800663625 is about 928.5743853104.

It can be divided in two parts, 8006 and 63625, that added together give a triangular number (71631 = T₃₇₈).

The spelling of 800663625 in words is "eight hundred million, six hundred sixty-three thousand, six hundred twenty-five".