804685645 has 8 divisors (see below), whose sum is σ = 966251520. Its totient is φ = 643329360.

The previous prime is 804685627. The next prime is 804685691. The reversal of 804685645 is 546586408.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 804685645 - 2⁷ = 804685517 is a prime.

It is a super-3 number, since 3×804685645³ (a number of 28 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 804685595 and 804685604.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 43821 + ... + 59410.

It is an arithmetic number, because the mean of its divisors is an integer number (120781440).

Almost surely, 2^804685645 is an apocalyptic number.

It is an amenable number.

804685645 is a deficient number, since it is larger than the sum of its proper divisors (161565875).

804685645 is a wasteful number, since it uses less digits than its factorization.

804685645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104795.

The product of its (nonzero) digits is 921600, while the sum is 46.

The square root of 804685645 is about 28366.9815983301. The cubic root of 804685645 is about 930.1266428685.

The spelling of 804685645 in words is "eight hundred four million, six hundred eighty-five thousand, six hundred forty-five".