869912973 has 8 divisors (see below), whose sum is σ = 1288760000. Its totient is φ = 579941964.

The previous prime is 869912947. The next prime is 869912983. The reversal of 869912973 is 379219968.

It is not a de Polignac number, because 869912973 - 2⁵ = 869912941 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (869912983) 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, 16109473 + ... + 16109526.

It is an arithmetic number, because the mean of its divisors is an integer number (161095000).

Almost surely, 2^869912973 is an apocalyptic number.

It is an amenable number.

869912973 is a deficient number, since it is larger than the sum of its proper divisors (418847027).

869912973 is a wasteful number, since it uses less digits than its factorization.

869912973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32219008 (or 32219002 counting only the distinct ones).

The product of its digits is 1469664, while the sum is 54.

The square root of 869912973 is about 29494.2871247976. The cubic root of 869912973 is about 954.6084386566.

The spelling of 869912973 in words is "eight hundred sixty-nine million, nine hundred twelve thousand, nine hundred seventy-three".