804216925 has 12 divisors (see below), whose sum is σ = 997584340. Its totient is φ = 643144320.

The previous prime is 804216923. The next prime is 804216961. The reversal of 804216925 is 529612408.

It can be written as a sum of positive squares in 6 ways, for example, as 12694969 + 791521956 = 3563^2 + 28134^2 .

It is not a de Polignac number, because 804216925 - 2¹ = 804216923 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (804216923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 119449 + ... + 126001.

Almost surely, 2^804216925 is an apocalyptic number.

It is an amenable number.

804216925 is a deficient number, since it is larger than the sum of its proper divisors (193367415).

804216925 is a wasteful number, since it uses less digits than its factorization.

804216925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11472 (or 11467 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 804216925 is about 28358.7186769783. The cubic root of 804216925 is about 929.9460118195.

The spelling of 804216925 in words is "eight hundred four million, two hundred sixteen thousand, nine hundred twenty-five".