804626644 has 6 divisors (see below), whose sum is σ = 1408096634. Its totient is φ = 402313320.

The previous prime is 804626623. The next prime is 804626717. The reversal of 804626644 is 446626408.

It can be written as a sum of positive squares in only one way, i.e., 632019600 + 172607044 = 25140^2 + 13138^2 .

It is a junction number, because it is equal to n+sod(n) for n = 804626597 and 804626606.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100578327 + ... + 100578334.

Almost surely, 2^804626644 is an apocalyptic number.

It is an amenable number.

804626644 is a deficient number, since it is larger than the sum of its proper divisors (603469990).

804626644 is a wasteful number, since it uses less digits than its factorization.

804626644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201156665 (or 201156663 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 40.

The square root of 804626644 is about 28365.9416201895. The cubic root of 804626644 is about 930.1039094596.

The spelling of 804626644 in words is "eight hundred four million, six hundred twenty-six thousand, six hundred forty-four".