853444979 has 8 divisors (see below), whose sum is σ = 865359360. Its totient is φ = 841558536.

The previous prime is 853444913. The next prime is 853444981. The reversal of 853444979 is 979444358.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-853444979 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 853444979.

It is not an unprimeable number, because it can be changed into a prime (853444079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58802 + ... + 71864.

It is an arithmetic number, because the mean of its divisors is an integer number (108169920).

Almost surely, 2^853444979 is an apocalyptic number.

853444979 is a deficient number, since it is larger than the sum of its proper divisors (11914381).

853444979 is a wasteful number, since it uses less digits than its factorization.

853444979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13969.

The product of its digits is 4354560, while the sum is 53.

The square root of 853444979 is about 29213.7806351728. The cubic root of 853444979 is about 948.5462451981.

The spelling of 853444979 in words is "eight hundred fifty-three million, four hundred forty-four thousand, nine hundred seventy-nine".