8749573 has 4 divisors (see below), whose sum is σ = 9999520. Its totient is φ = 7499628.

The previous prime is 8749571. The next prime is 8749579. The reversal of 8749573 is 3759478.

It is a happy number.

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 8749573 - 2¹ = 8749571 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 (8749571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 624963 + ... + 624976.

It is an arithmetic number, because the mean of its divisors is an integer number (2499880).

Almost surely, 2^8749573 is an apocalyptic number.

It is an amenable number.

8749573 is a deficient number, since it is larger than the sum of its proper divisors (1249947).

8749573 is a wasteful number, since it uses less digits than its factorization.

8749573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1249946.

The product of its digits is 211680, while the sum is 43.

The square root of 8749573 is about 2957.9677144959. The cubic root of 8749573 is about 206.0609129572.

The spelling of 8749573 in words is "eight million, seven hundred forty-nine thousand, five hundred seventy-three".