89141921 has 4 divisors (see below), whose sum is σ = 97245744. Its totient is φ = 81038100.

The previous prime is 89141891. The next prime is 89141953. The reversal of 89141921 is 12914198.

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 de Polignac number, because none of the positive numbers 2^k-89141921 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (89143921) 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, 4051895 + ... + 4051916.

It is an arithmetic number, because the mean of its divisors is an integer number (24311436).

Almost surely, 2^89141921 is an apocalyptic number.

It is an amenable number.

89141921 is a deficient number, since it is larger than the sum of its proper divisors (8103823).

89141921 is a wasteful number, since it uses less digits than its factorization.

89141921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8103822.

The product of its digits is 5184, while the sum is 35.

The square root of 89141921 is about 9441.4999338029. The cubic root of 89141921 is about 446.7117022856.

The spelling of 89141921 in words is "eighty-nine million, one hundred forty-one thousand, nine hundred twenty-one".