89765518 has 4 divisors (see below), whose sum is σ = 134648280. Its totient is φ = 44882758.

The previous prime is 89765509. The next prime is 89765521. The reversal of 89765518 is 81556798.

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

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22441378 + ... + 22441381.

It is an arithmetic number, because the mean of its divisors is an integer number (33662070).

Almost surely, 2^89765518 is an apocalyptic number.

89765518 is a deficient number, since it is larger than the sum of its proper divisors (44882762).

89765518 is a wasteful number, since it uses less digits than its factorization.

89765518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44882761.

The product of its digits is 604800, while the sum is 49.

The square root of 89765518 is about 9474.4666340644. The cubic root of 89765518 is about 447.7509477491.

The spelling of 89765518 in words is "eighty-nine million, seven hundred sixty-five thousand, five hundred eighteen".