89276991 has 8 divisors (see below), whose sum is σ = 125301120. Its totient is φ = 56385432.

The previous prime is 89276959. The next prime is 89277061. The reversal of 89276991 is 19967298.

It is a happy number.

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

It is not a de Polignac number, because 89276991 - 2⁵ = 89276959 is a prime.

It is a super-2 number, since 2×89276991² = 15940762244028162, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89276191) 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, 783075 + ... + 783188.

It is an arithmetic number, because the mean of its divisors is an integer number (15662640).

Almost surely, 2^89276991 is an apocalyptic number.

89276991 is a deficient number, since it is larger than the sum of its proper divisors (36024129).

89276991 is a wasteful number, since it uses less digits than its factorization.

89276991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1566285.

The product of its digits is 489888, while the sum is 51.

The square root of 89276991 is about 9448.6502210633. The cubic root of 89276991 is about 446.9372112258.

The spelling of 89276991 in words is "eighty-nine million, two hundred seventy-six thousand, nine hundred ninety-one".