89133791 has 4 divisors (see below), whose sum is σ = 92207400. Its totient is φ = 86060184.

The previous prime is 89133739. The next prime is 89133829. The reversal of 89133791 is 19733198.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19733198 = 2 ⋅9866599.

It is a cyclic number.

It is not a de Polignac number, because 89133791 - 2⁶ = 89133727 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 (89133721) 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, 1536761 + ... + 1536818.

It is an arithmetic number, because the mean of its divisors is an integer number (23051850).

Almost surely, 2^89133791 is an apocalyptic number.

89133791 is a deficient number, since it is larger than the sum of its proper divisors (3073609).

89133791 is a wasteful number, since it uses less digits than its factorization.

89133791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3073608.

The product of its digits is 40824, while the sum is 41.

The square root of 89133791 is about 9441.0693779889. The cubic root of 89133791 is about 446.6981214080.

The spelling of 89133791 in words is "eighty-nine million, one hundred thirty-three thousand, seven hundred ninety-one".