89456009 has 4 divisors (see below), whose sum is σ = 94164240. Its totient is φ = 84747780.

The previous prime is 89455999. The next prime is 89456011. The reversal of 89456009 is 90065498.

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, and also an emirpimes, since its reverse is a distinct semiprime: 90065498 = 2 ⋅45032749.

It is a cyclic number.

It is not a de Polignac number, because 89456009 - 2⁸ = 89455753 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (89456509) 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, 2354087 + ... + 2354124.

It is an arithmetic number, because the mean of its divisors is an integer number (23541060).

Almost surely, 2^89456009 is an apocalyptic number.

It is an amenable number.

89456009 is a deficient number, since it is larger than the sum of its proper divisors (4708231).

89456009 is a wasteful number, since it uses less digits than its factorization.

89456009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4708230.

The product of its (nonzero) digits is 77760, while the sum is 41.

The square root of 89456009 is about 9458.1186818521. The cubic root of 89456009 is about 447.2357442363.

The spelling of 89456009 in words is "eighty-nine million, four hundred fifty-six thousand, nine".