89442471 has 8 divisors (see below), whose sum is σ = 123103744. Its totient is φ = 57704760.

The previous prime is 89442461. The next prime is 89442473. The reversal of 89442471 is 17424498.

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

It is not a de Polignac number, because 89442471 - 2¹⁰ = 89441447 is a prime.

It is a super-3 number, since 3×89442471³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89442473) 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, 480781 + ... + 480966.

It is an arithmetic number, because the mean of its divisors is an integer number (15387968).

Almost surely, 2^89442471 is an apocalyptic number.

89442471 is a deficient number, since it is larger than the sum of its proper divisors (33661273).

89442471 is a wasteful number, since it uses less digits than its factorization.

89442471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 961781.

The product of its digits is 64512, while the sum is 39.

The square root of 89442471 is about 9457.4029733326. The cubic root of 89442471 is about 447.2131819996.

It can be divided in two parts, 894 and 42471, that added together give a triangular number (43365 = T₂₉₄).

The spelling of 89442471 in words is "eighty-nine million, four hundred forty-two thousand, four hundred seventy-one".