819341825 has 12 divisors (see below), whose sum is σ = 1025851008. Its totient is φ = 649107600.

The previous prime is 819341819. The next prime is 819341833. The reversal of 819341825 is 528143918.

It is a de Polignac number, because none of the positive numbers 2^k-819341825 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 156521 + ... + 161670.

It is an arithmetic number, because the mean of its divisors is an integer number (85487584).

Almost surely, 2^819341825 is an apocalyptic number.

It is an amenable number.

819341825 is a deficient number, since it is larger than the sum of its proper divisors (206509183).

819341825 is a wasteful number, since it uses less digits than its factorization.

819341825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318304 (or 318299 counting only the distinct ones).

The product of its digits is 69120, while the sum is 41.

The square root of 819341825 is about 28624.1475855614. The cubic root of 819341825 is about 935.7396703539.

The spelling of 819341825 in words is "eight hundred nineteen million, three hundred forty-one thousand, eight hundred twenty-five".