89947311 has 8 divisors (see below), whose sum is σ = 126241920. Its totient is φ = 56808792.

The previous prime is 89947279. The next prime is 89947313. The reversal of 89947311 is 11374998.

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 89947311 - 2⁵ = 89947279 is a prime.

It is a super-2 number, since 2×89947311² = 16181037512261442, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89947313) 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, 788955 + ... + 789068.

It is an arithmetic number, because the mean of its divisors is an integer number (15780240).

Almost surely, 2^89947311 is an apocalyptic number.

89947311 is a deficient number, since it is larger than the sum of its proper divisors (36294609).

89947311 is a wasteful number, since it uses less digits than its factorization.

89947311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1578045.

The product of its digits is 54432, while the sum is 42.

The square root of 89947311 is about 9484.0556198285. The cubic root of 89947311 is about 448.0530054604.

The spelling of 89947311 in words is "eighty-nine million, nine hundred forty-seven thousand, three hundred eleven".