844687068 has 12 divisors (see below), whose sum is σ = 1970936520. Its totient is φ = 281562352.

The previous prime is 844687057. The next prime is 844687079. The reversal of 844687068 is 860786448.

It is an interprime number because it is at equal distance from previous prime (844687057) and next prime (844687079).

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 844687068.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35195283 + ... + 35195306.

It is an arithmetic number, because the mean of its divisors is an integer number (164244710).

Almost surely, 2^844687068 is an apocalyptic number.

It is an amenable number.

844687068 is an abundant number, since it is smaller than the sum of its proper divisors (1126249452).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

844687068 is a wasteful number, since it uses less digits than its factorization.

844687068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70390596 (or 70390594 counting only the distinct ones).

The product of its (nonzero) digits is 2064384, while the sum is 51.

The square root of 844687068 is about 29063.5006150326. The cubic root of 844687068 is about 945.2904747984.

The spelling of 844687068 in words is "eight hundred forty-four million, six hundred eighty-seven thousand, sixty-eight".