89819071 has 4 divisors (see below), whose sum is σ = 93724272. Its totient is φ = 85913872.

The previous prime is 89819057. The next prime is 89819083. The reversal of 89819071 is 17091898.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-89819071 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89819371) 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 3 ways as a sum of consecutive naturals, for example, 1952566 + ... + 1952611.

It is an arithmetic number, because the mean of its divisors is an integer number (23431068).

Almost surely, 2^89819071 is an apocalyptic number.

89819071 is a deficient number, since it is larger than the sum of its proper divisors (3905201).

89819071 is a wasteful number, since it uses less digits than its factorization.

89819071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3905200.

The product of its (nonzero) digits is 36288, while the sum is 43.

The square root of 89819071 is about 9477.2923875968. The cubic root of 89819071 is about 447.8399709443.

The spelling of 89819071 in words is "eighty-nine million, eight hundred nineteen thousand, seventy-one".