8900443 has 4 divisors (see below), whose sum is σ = 8939880. Its totient is φ = 8861008.

The previous prime is 8900431. The next prime is 8900447. The reversal of 8900443 is 3440098.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3440098 = 2 ⋅1720049.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8900443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8900447) 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, 19378 + ... + 19831.

It is an arithmetic number, because the mean of its divisors is an integer number (2234970).

Almost surely, 2^8900443 is an apocalyptic number.

8900443 is a deficient number, since it is larger than the sum of its proper divisors (39437).

8900443 is a wasteful number, since it uses less digits than its factorization.

8900443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39436.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 8900443 is about 2983.3610240801. The cubic root of 8900443 is about 207.2385481441.

The spelling of 8900443 in words is "eight million, nine hundred thousand, four hundred forty-three".