89645845 has 16 divisors (see below), whose sum is σ = 114213888. Its totient is φ = 67313920.

The previous prime is 89645837. The next prime is 89645887. The reversal of 89645845 is 54854698.

It is not a de Polignac number, because 89645845 - 2³ = 89645837 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35412 + ... + 37858.

It is an arithmetic number, because the mean of its divisors is an integer number (7138368).

Almost surely, 2^89645845 is an apocalyptic number.

89645845 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

89645845 is a deficient number, since it is larger than the sum of its proper divisors (24568043).

89645845 is a wasteful number, since it uses less digits than its factorization.

89645845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2900.

The product of its digits is 1382400, while the sum is 49.

The square root of 89645845 is about 9468.1489743244. The cubic root of 89645845 is about 447.5518827104.

The spelling of 89645845 in words is "eighty-nine million, six hundred forty-five thousand, eight hundred forty-five".