894874001684797 has 4 divisors (see below), whose sum is σ = 894875618733660. Its totient is φ = 894872384635936.

The previous prime is 894874001684753. The next prime is 894874001684833. The reversal of 894874001684797 is 797486100478498.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 862428970513881 + 32445031170916 = 29367141^2 + 5696054^2 .

It is a cyclic number.

It is not a de Polignac number, because 894874001684797 - 2²³ = 894873993296189 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 894874001684797.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (894874001684197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 807694048 + ... + 808801225.

It is an arithmetic number, because the mean of its divisors is an integer number (223718904683415).

Almost surely, 2^{894874001684797} is an apocalyptic number.

It is an amenable number.

894874001684797 is a deficient number, since it is larger than the sum of its proper divisors (1617048863).

894874001684797 is a wasteful number, since it uses less digits than its factorization.

894874001684797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1617048862.

The product of its (nonzero) digits is 5462360064, while the sum is 82.

The spelling of 894874001684797 in words is "eight hundred ninety-four trillion, eight hundred seventy-four billion, one million, six hundred eighty-four thousand, seven hundred ninety-seven".