808047645 has 8 divisors (see below), whose sum is σ = 1292876256. Its totient is φ = 430958736.

The previous prime is 808047623. The next prime is 808047683. The reversal of 808047645 is 546740808.

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

It is not a de Polignac number, because 808047645 - 2⁷ = 808047517 is a prime.

It is a super-4 number, since 4×808047645⁴ (a number of 37 digits) contains 4444 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 808047597 and 808047606.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26934907 + ... + 26934936.

It is an arithmetic number, because the mean of its divisors is an integer number (161609532).

Almost surely, 2^808047645 is an apocalyptic number.

It is an amenable number.

808047645 is a deficient number, since it is larger than the sum of its proper divisors (484828611).

808047645 is a wasteful number, since it uses less digits than its factorization.

808047645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53869851.

The product of its (nonzero) digits is 215040, while the sum is 42.

The square root of 808047645 is about 28426.1788673751. The cubic root of 808047645 is about 931.4202083971.

The spelling of 808047645 in words is "eight hundred eight million, forty-seven thousand, six hundred forty-five".