89551321 has 4 divisors (see below), whose sum is σ = 91069200. Its totient is φ = 88033444.

The previous prime is 89551307. The next prime is 89551337. The reversal of 89551321 is 12315598.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 89551321 - 2⁵ = 89551289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (89551361) 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, 758851 + ... + 758968.

It is an arithmetic number, because the mean of its divisors is an integer number (22767300).

Almost surely, 2^89551321 is an apocalyptic number.

It is an amenable number.

89551321 is a deficient number, since it is larger than the sum of its proper divisors (1517879).

89551321 is a wasteful number, since it uses less digits than its factorization.

89551321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1517878.

The product of its digits is 10800, while the sum is 34.

The square root of 89551321 is about 9463.1559746207. The cubic root of 89551321 is about 447.3945254576.

The spelling of 89551321 in words is "eighty-nine million, five hundred fifty-one thousand, three hundred twenty-one".