89439841 has 16 divisors (see below), whose sum is σ = 94367680. Its totient is φ = 84680640.

The previous prime is 89439829. The next prime is 89439851. The reversal of 89439841 is 14893498.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-89439841 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 89439791 and 89439800.

It is not an unprimeable number, because it can be changed into a prime (89439851) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 270046 + ... + 270376.

It is an arithmetic number, because the mean of its divisors is an integer number (5897980).

Almost surely, 2^89439841 is an apocalyptic number.

It is an amenable number.

89439841 is a deficient number, since it is larger than the sum of its proper divisors (4927839).

89439841 is a wasteful number, since it uses less digits than its factorization.

89439841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 544.

The product of its digits is 248832, while the sum is 46.

The square root of 89439841 is about 9457.2639277965. The cubic root of 89439841 is about 447.2087986152.

The spelling of 89439841 in words is "eighty-nine million, four hundred thirty-nine thousand, eight hundred forty-one".