89170391 has 8 divisors (see below), whose sum is σ = 91044000. Its totient is φ = 87314080.

The previous prime is 89170387. The next prime is 89170397. The reversal of 89170391 is 19307198.

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

It is a cyclic number.

It is not a de Polignac number, because 89170391 - 2² = 89170387 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 (89170397) 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 7 ways as a sum of consecutive naturals, for example, 6365 + ... + 14793.

It is an arithmetic number, because the mean of its divisors is an integer number (11380500).

Almost surely, 2^89170391 is an apocalyptic number.

89170391 is a deficient number, since it is larger than the sum of its proper divisors (1873609).

89170391 is a wasteful number, since it uses less digits than its factorization.

89170391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8649.

The product of its (nonzero) digits is 13608, while the sum is 38.

The square root of 89170391 is about 9443.0075187940. The cubic root of 89170391 is about 446.7592539064.

The spelling of 89170391 in words is "eighty-nine million, one hundred seventy thousand, three hundred ninety-one".