817673345 has 8 divisors (see below), whose sum is σ = 1023869376. Its totient is φ = 625697776.

The previous prime is 817673333. The next prime is 817673359. The reversal of 817673345 is 543376718.

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

It is a cyclic number.

It is not a de Polignac number, because 817673345 - 2⁶ = 817673281 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 817673296 and 817673305.

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, 3554987 + ... + 3555216.

It is an arithmetic number, because the mean of its divisors is an integer number (127983672).

Almost surely, 2^817673345 is an apocalyptic number.

It is an amenable number.

817673345 is a deficient number, since it is larger than the sum of its proper divisors (206196031).

817673345 is a wasteful number, since it uses less digits than its factorization.

817673345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7110231.

The product of its digits is 423360, while the sum is 44.

The square root of 817673345 is about 28594.9881098069. The cubic root of 817673345 is about 935.1040691735.

The spelling of 817673345 in words is "eight hundred seventeen million, six hundred seventy-three thousand, three hundred forty-five".