985323779 has 8 divisors (see below), whose sum is σ = 1078150080. Its totient is φ = 893039400.

The previous prime is 985323761. The next prime is 985323797. The reversal of 985323779 is 977323589.

It is an interprime number because it is at equal distance from previous prime (985323761) and next prime (985323797).

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

It is not a de Polignac number, because 985323779 - 2¹² = 985319683 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 985323779.

It is not an unprimeable number, because it can be changed into a prime (985323709) 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, 131669 + ... + 138950.

It is an arithmetic number, because the mean of its divisors is an integer number (134768760).

Almost surely, 2^985323779 is an apocalyptic number.

985323779 is a deficient number, since it is larger than the sum of its proper divisors (92826301).

985323779 is a wasteful number, since it uses less digits than its factorization.

985323779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270961.

The product of its digits is 2857680, while the sum is 53.

The square root of 985323779 is about 31389.8674575093. The cubic root of 985323779 is about 995.0837968869.

The spelling of 985323779 in words is "nine hundred eighty-five million, three hundred twenty-three thousand, seven hundred seventy-nine".