8743021 has 12 divisors (see below), whose sum is σ = 10706880. Its totient is φ = 7098840.

The previous prime is 8743019. The next prime is 8743027. The reversal of 8743021 is 1203478.

It is not a de Polignac number, because 8743021 - 2¹ = 8743019 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8743027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3765 + ... + 5626.

It is an arithmetic number, because the mean of its divisors is an integer number (892240).

Almost surely, 2^8743021 is an apocalyptic number.

It is an amenable number.

8743021 is a deficient number, since it is larger than the sum of its proper divisors (1963859).

8743021 is a wasteful number, since it uses less digits than its factorization.

8743021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9424 (or 9417 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 8743021 is about 2956.8599899217. The cubic root of 8743021 is about 206.0094647990.

Adding to 8743021 its reverse (1203478), we get a palindrome (9946499).

The spelling of 8743021 in words is "eight million, seven hundred forty-three thousand, twenty-one".