89645489 has 4 divisors (see below), whose sum is σ = 89683440. Its totient is φ = 89607540.

The previous prime is 89645483. The next prime is 89645509. The reversal of 89645489 is 98454698.

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 a cyclic number.

It is not a de Polignac number, because 89645489 - 2⁴ = 89645473 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 89645489.

It is not an unprimeable number, because it can be changed into a prime (89645483) 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, 15179 + ... + 20240.

It is an arithmetic number, because the mean of its divisors is an integer number (22420860).

Almost surely, 2^89645489 is an apocalyptic number.

It is an amenable number.

89645489 is a deficient number, since it is larger than the sum of its proper divisors (37951).

89645489 is a wasteful number, since it uses less digits than its factorization.

89645489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37950.

The product of its digits is 2488320, while the sum is 53.

The square root of 89645489 is about 9468.1301744325. The cubic root of 89645489 is about 447.5512902729.

The spelling of 89645489 in words is "eighty-nine million, six hundred forty-five thousand, four hundred eighty-nine".