89807145 has 16 divisors (see below), whose sum is σ = 146128320. Its totient is φ = 47084864.

The previous prime is 89807143. The next prime is 89807147. The reversal of 89807145 is 54170898.

It is an interprime number because it is at equal distance from previous prime (89807143) and next prime (89807147).

It is a cyclic number.

It is not a de Polignac number, because 89807145 - 2¹ = 89807143 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 89807097 and 89807106.

It is not an unprimeable number, because it can be changed into a prime (89807143) 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 15 ways as a sum of consecutive naturals, for example, 49854 + ... + 51623.

It is an arithmetic number, because the mean of its divisors is an integer number (9133020).

Almost surely, 2^89807145 is an apocalyptic number.

It is an amenable number.

89807145 is a deficient number, since it is larger than the sum of its proper divisors (56321175).

89807145 is a wasteful number, since it uses less digits than its factorization.

89807145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101544.

The product of its (nonzero) digits is 80640, while the sum is 42.

The square root of 89807145 is about 9476.6631785666. The cubic root of 89807145 is about 447.8201489628.

The spelling of 89807145 in words is "eighty-nine million, eight hundred seven thousand, one hundred forty-five".