89099191 has 4 divisors (see below), whose sum is σ = 91272384. Its totient is φ = 86926000.

The previous prime is 89099173. The next prime is 89099209. The reversal of 89099191 is 19199098.

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

It is an interprime number because it is at equal distance from previous prime (89099173) and next prime (89099209).

It is a cyclic number.

It is not a de Polignac number, because 89099191 - 2⁷ = 89099063 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 (89097191) 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, 1086535 + ... + 1086616.

It is an arithmetic number, because the mean of its divisors is an integer number (22818096).

Almost surely, 2^89099191 is an apocalyptic number.

89099191 is a deficient number, since it is larger than the sum of its proper divisors (2173193).

89099191 is a wasteful number, since it uses less digits than its factorization.

89099191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2173192.

The product of its (nonzero) digits is 52488, while the sum is 46.

The square root of 89099191 is about 9439.2367805877. The cubic root of 89099191 is about 446.6403140934.

The spelling of 89099191 in words is "eighty-nine million, ninety-nine thousand, one hundred ninety-one".