7852209 has 4 divisors (see below), whose sum is σ = 10469616. Its totient is φ = 5234804.

The previous prime is 7852183. The next prime is 7852211. The reversal of 7852209 is 9022587.

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 7852209 - 2¹⁹ = 7327921 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7852209.

It is not an unprimeable number, because it can be changed into a prime (7852219) 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, 1308699 + ... + 1308704.

It is an arithmetic number, because the mean of its divisors is an integer number (2617404).

Almost surely, 2^7852209 is an apocalyptic number.

It is an amenable number.

7852209 is a deficient number, since it is larger than the sum of its proper divisors (2617407).

7852209 is a wasteful number, since it uses less digits than its factorization.

7852209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2617406.

The product of its (nonzero) digits is 10080, while the sum is 33.

The square root of 7852209 is about 2802.1793304498. The cubic root of 7852209 is about 198.7607454338.

The spelling of 7852209 in words is "seven million, eight hundred fifty-two thousand, two hundred nine".