89091879 has 8 divisors (see below), whose sum is σ = 118865520. Its totient is φ = 59356416.

The previous prime is 89091869. The next prime is 89091907. The reversal of 89091879 is 97819098.

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

It is a de Polignac number, because none of the positive numbers 2^k-89091879 is a prime.

It is a super-3 number, since 3×89091879³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89091809) 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 7 ways as a sum of consecutive naturals, for example, 3562 + ... + 13815.

It is an arithmetic number, because the mean of its divisors is an integer number (14858190).

Almost surely, 2^89091879 is an apocalyptic number.

89091879 is a deficient number, since it is larger than the sum of its proper divisors (29773641).

89091879 is a wasteful number, since it uses less digits than its factorization.

89091879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19089.

The product of its (nonzero) digits is 326592, while the sum is 51.

The square root of 89091879 is about 9438.8494531908. The cubic root of 89091879 is about 446.6280957882.

The spelling of 89091879 in words is "eighty-nine million, ninety-one thousand, eight hundred seventy-nine".