89355645 has 24 divisors (see below), whose sum is σ = 155105496. Its totient is φ = 47587968.

The previous prime is 89355631. The next prime is 89355649. The reversal of 89355645 is 54655398.

89355645 is a `hidden beast` number, since 8 + 93 + 556 + 4 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 6563844 + 82791801 = 2562^2 + 9099^2 .

It is not a de Polignac number, because 89355645 - 2¹⁷ = 89224573 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 89355645.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89355649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 53767 + ... + 55403.

It is an arithmetic number, because the mean of its divisors is an integer number (6462729).

Almost surely, 2^89355645 is an apocalyptic number.

It is an amenable number.

89355645 is a deficient number, since it is larger than the sum of its proper divisors (65749851).

89355645 is a wasteful number, since it uses less digits than its factorization.

89355645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2861 (or 2858 counting only the distinct ones).

The product of its digits is 648000, while the sum is 45.

The square root of 89355645 is about 9452.8114865367. The cubic root of 89355645 is about 447.0684248810.

It can be divided in two parts, 89355 and 645, that added together give a square (90000 = 300²).

The spelling of 89355645 in words is "eighty-nine million, three hundred fifty-five thousand, six hundred forty-five".