89419989 has 4 divisors (see below), whose sum is σ = 119226656. Its totient is φ = 59613324.

The previous prime is 89419969. The next prime is 89419997. The reversal of 89419989 is 98991498.

It is a happy number.

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 not a de Polignac number, because 89419989 - 2¹³ = 89411797 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89419969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14903329 + ... + 14903334.

It is an arithmetic number, because the mean of its divisors is an integer number (29806664).

Almost surely, 2^89419989 is an apocalyptic number.

It is an amenable number.

89419989 is a deficient number, since it is larger than the sum of its proper divisors (29806667).

89419989 is a wasteful number, since it uses less digits than its factorization.

89419989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29806666.

The product of its digits is 1679616, while the sum is 57.

The square root of 89419989 is about 9456.2143059472. The cubic root of 89419989 is about 447.1757087904.

The spelling of 89419989 in words is "eighty-nine million, four hundred nineteen thousand, nine hundred eighty-nine".