89281867 has 4 divisors (see below), whose sum is σ = 89303040. Its totient is φ = 89260696.

The previous prime is 89281859. The next prime is 89281873. The reversal of 89281867 is 76818298.

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

It is a cyclic number.

It is not a de Polignac number, because 89281867 - 2³ = 89281859 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 89281867.

It is not an unprimeable number, because it can be changed into a prime (89281877) 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 3 ways as a sum of consecutive naturals, for example, 1867 + ... + 13492.

It is an arithmetic number, because the mean of its divisors is an integer number (22325760).

Almost surely, 2^89281867 is an apocalyptic number.

89281867 is a deficient number, since it is larger than the sum of its proper divisors (21173).

89281867 is a wasteful number, since it uses less digits than its factorization.

89281867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21172.

The product of its digits is 387072, while the sum is 49.

The square root of 89281867 is about 9448.9082438131. The cubic root of 89281867 is about 446.9453477984.

The spelling of 89281867 in words is "eighty-nine million, two hundred eighty-one thousand, eight hundred sixty-seven".