89870265 has 24 divisors (see below), whose sum is σ = 156237120. Its totient is φ = 47788704.

The previous prime is 89870243. The next prime is 89870267. The reversal of 89870265 is 56207898.

It is not a de Polignac number, because 89870265 - 2⁵ = 89870233 is a prime.

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

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 89870265.

It is not an unprimeable number, because it can be changed into a prime (89870267) 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, 13374 + ... + 18936.

It is an arithmetic number, because the mean of its divisors is an integer number (6509880).

Almost surely, 2^89870265 is an apocalyptic number.

It is an amenable number.

89870265 is a deficient number, since it is larger than the sum of its proper divisors (66366855).

89870265 is a wasteful number, since it uses less digits than its factorization.

89870265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5933 (or 5930 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 45.

The square root of 89870265 is about 9479.9928797442. The cubic root of 89870265 is about 447.9250396079.

The spelling of 89870265 in words is "eighty-nine million, eight hundred seventy thousand, two hundred sixty-five".