89509091 has 8 divisors (see below), whose sum is σ = 102363744. Its totient is φ = 76671360.

The previous prime is 89509073. The next prime is 89509093. The reversal of 89509091 is 19090598.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-89509091 is a prime.

It is not an unprimeable number, because it can be changed into a prime (89509093) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10571 + ... + 17051.

It is an arithmetic number, because the mean of its divisors is an integer number (12795468).

Almost surely, 2^89509091 is an apocalyptic number.

89509091 is a deficient number, since it is larger than the sum of its proper divisors (12854653).

89509091 is a wasteful number, since it uses less digits than its factorization.

89509091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8461.

The product of its (nonzero) digits is 29160, while the sum is 41.

The square root of 89509091 is about 9460.9244262915. The cubic root of 89509091 is about 447.3241879824.

The spelling of 89509091 in words is "eighty-nine million, five hundred nine thousand, ninety-one".