89782145 has 4 divisors (see below), whose sum is σ = 107738580. Its totient is φ = 71825712.

The previous prime is 89782139. The next prime is 89782153. The reversal of 89782145 is 54128798.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 42941809 + 46840336 = 6553^2 + 6844^2 .

It is a cyclic number.

It is not a de Polignac number, because 89782145 - 2⁶ = 89782081 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 89782096 and 89782105.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8978210 + ... + 8978219.

It is an arithmetic number, because the mean of its divisors is an integer number (26934645).

Almost surely, 2^89782145 is an apocalyptic number.

It is an amenable number.

89782145 is a deficient number, since it is larger than the sum of its proper divisors (17956435).

89782145 is a wasteful number, since it uses less digits than its factorization.

89782145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17956434.

The product of its digits is 161280, while the sum is 44.

The square root of 89782145 is about 9475.3440570778. The cubic root of 89782145 is about 447.7785912347.

The spelling of 89782145 in words is "eighty-nine million, seven hundred eighty-two thousand, one hundred forty-five".