89871841 has 4 divisors (see below), whose sum is σ = 92970900. Its totient is φ = 86772784.

The previous prime is 89871829. The next prime is 89871851. The reversal of 89871841 is 14817898.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 65270241 + 24601600 = 8079^2 + 4960^2 .

It is a cyclic number.

It is not a de Polignac number, because 89871841 - 2¹⁷ = 89740769 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 89871791 and 89871800.

It is not an unprimeable number, because it can be changed into a prime (89871811) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1549486 + ... + 1549543.

It is an arithmetic number, because the mean of its divisors is an integer number (23242725).

Almost surely, 2^89871841 is an apocalyptic number.

It is an amenable number.

89871841 is a deficient number, since it is larger than the sum of its proper divisors (3099059).

89871841 is a wasteful number, since it uses less digits than its factorization.

89871841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3099058.

The product of its digits is 129024, while the sum is 46.

The square root of 89871841 is about 9480.0760018050. The cubic root of 89871841 is about 447.9276579220.

The spelling of 89871841 in words is "eighty-nine million, eight hundred seventy-one thousand, eight hundred forty-one".