89344421 has 4 divisors (see below), whose sum is σ = 89379372. Its totient is φ = 89309472.

The previous prime is 89344399. The next prime is 89344439. The reversal of 89344421 is 12444398.

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 23961025 + 65383396 = 4895^2 + 8086^2 .

It is a cyclic number.

It is not a de Polignac number, because 89344421 - 2¹⁴ = 89328037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89344921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13310 + ... + 18863.

It is an arithmetic number, because the mean of its divisors is an integer number (22344843).

Almost surely, 2^89344421 is an apocalyptic number.

It is an amenable number.

89344421 is a deficient number, since it is larger than the sum of its proper divisors (34951).

89344421 is a wasteful number, since it uses less digits than its factorization.

89344421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34950.

The product of its digits is 27648, while the sum is 35.

The square root of 89344421 is about 9452.2177820869. The cubic root of 89344421 is about 447.0497052798.

The spelling of 89344421 in words is "eighty-nine million, three hundred forty-four thousand, four hundred twenty-one".