8973499209 has 4 divisors (see below), whose sum is σ = 11964665616. Its totient is φ = 5982332804.

The previous prime is 8973499201. The next prime is 8973499219. The reversal of 8973499209 is 9029943798.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 8973499209 - 2³ = 8973499201 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8973499201) 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, 1495583199 + ... + 1495583204.

It is an arithmetic number, because the mean of its divisors is an integer number (2991166404).

Almost surely, 2^8973499209 is an apocalyptic number.

It is an amenable number.

8973499209 is a deficient number, since it is larger than the sum of its proper divisors (2991166407).

8973499209 is a wasteful number, since it uses less digits than its factorization.

8973499209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2991166406.

The product of its (nonzero) digits is 8817984, while the sum is 60.

The square root of 8973499209 is about 94728.5554043764. Note that the first 3 decimals coincide. The cubic root of 8973499209 is about 2078.0401911998.

The spelling of 8973499209 in words is "eight billion, nine hundred seventy-three million, four hundred ninety-nine thousand, two hundred nine".