89801 has 4 divisors (see below), whose sum is σ = 90900. Its totient is φ = 88704.

The previous prime is 89797. The next prime is 89809. The reversal of 89801 is 10898.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10898 = 2 ⋅5449.

It can be written as a sum of positive squares in 2 ways, for example, as 22201 + 67600 = 149^2 + 260^2 .

It is a cyclic number.

It is not a de Polignac number, because 89801 - 2² = 89797 is a prime.

It is a Duffinian number.

89801 is a modest number, since divided by 801 gives 89 as remainder.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (89809) 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, 416 + ... + 593.

It is an arithmetic number, because the mean of its divisors is an integer number (22725).

2⁸⁹⁸⁰¹ is an apocalyptic number.

It is an amenable number.

89801 is a deficient number, since it is larger than the sum of its proper divisors (1099).

89801 is a wasteful number, since it uses less digits than its factorization.

89801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1098.

The product of its (nonzero) digits is 576, while the sum is 26.

The square root of 89801 is about 299.6681497924. The cubic root of 89801 is about 44.7809934788.

It can be divided in two parts, 89 and 801, that multiplied together give a square (71289 = 267²).

The spelling of 89801 in words is "eighty-nine thousand, eight hundred one".