89855321 has 4 divisors (see below), whose sum is σ = 90122292. Its totient is φ = 89588352.

The previous prime is 89855317. The next prime is 89855347. The reversal of 89855321 is 12355898.

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 57592921 + 32262400 = 7589^2 + 5680^2 .

It is a cyclic number.

It is not a de Polignac number, because 89855321 - 2² = 89855317 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (89855371) 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, 132980 + ... + 133653.

It is an arithmetic number, because the mean of its divisors is an integer number (22530573).

Almost surely, 2^89855321 is an apocalyptic number.

It is an amenable number.

89855321 is a deficient number, since it is larger than the sum of its proper divisors (266971).

89855321 is a wasteful number, since it uses less digits than its factorization.

89855321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266970.

The product of its digits is 86400, while the sum is 41.

The square root of 89855321 is about 9479.2046607297. The cubic root of 89855321 is about 447.9002106212.

The spelling of 89855321 in words is "eighty-nine million, eight hundred fifty-five thousand, three hundred twenty-one".