985026811 has 4 divisors (see below), whose sum is σ = 985824352. Its totient is φ = 984229272.

The previous prime is 985026803. The next prime is 985026817. The reversal of 985026811 is 118620589.

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

It is a cyclic number.

It is not a de Polignac number, because 985026811 - 2³ = 985026803 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (985026817) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 396915 + ... + 399388.

It is an arithmetic number, because the mean of its divisors is an integer number (246456088).

Almost surely, 2^985026811 is an apocalyptic number.

985026811 is a deficient number, since it is larger than the sum of its proper divisors (797541).

985026811 is a wasteful number, since it uses less digits than its factorization.

985026811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 797540.

The product of its (nonzero) digits is 34560, while the sum is 40.

The square root of 985026811 is about 31385.1367847903. The cubic root of 985026811 is about 994.9838169805.

The spelling of 985026811 in words is "nine hundred eighty-five million, twenty-six thousand, eight hundred eleven".