844116977 has 8 divisors (see below), whose sum is σ = 922832352. Its totient is φ = 765731200.

The previous prime is 844116967. The next prime is 844116991. The reversal of 844116977 is 779611448.

It is a happy number.

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 844116977 - 2¹⁰ = 844115953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (844116907) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77024 + ... + 87297.

It is an arithmetic number, because the mean of its divisors is an integer number (115354044).

Almost surely, 2^844116977 is an apocalyptic number.

It is an amenable number.

844116977 is a deficient number, since it is larger than the sum of its proper divisors (78715375).

844116977 is a wasteful number, since it uses less digits than its factorization.

844116977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164799.

The product of its digits is 338688, while the sum is 47.

The square root of 844116977 is about 29053.6912801110. The cubic root of 844116977 is about 945.0777637266.

The spelling of 844116977 in words is "eight hundred forty-four million, one hundred sixteen thousand, nine hundred seventy-seven".