89822009 has 4 divisors (see below), whose sum is σ = 91162704. Its totient is φ = 88481316.

The previous prime is 89821993. The next prime is 89822011. The reversal of 89822009 is 90022898.

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 89822009 - 2⁴ = 89821993 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (89822069) 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, 670247 + ... + 670380.

It is an arithmetic number, because the mean of its divisors is an integer number (22790676).

Almost surely, 2^89822009 is an apocalyptic number.

It is an amenable number.

89822009 is a deficient number, since it is larger than the sum of its proper divisors (1340695).

89822009 is a wasteful number, since it uses less digits than its factorization.

89822009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1340694.

The product of its (nonzero) digits is 20736, while the sum is 38.

The square root of 89822009 is about 9477.4473884058. The cubic root of 89822009 is about 447.8448538697.

The spelling of 89822009 in words is "eighty-nine million, eight hundred twenty-two thousand, nine".