7899223 has 8 divisors (see below), whose sum is σ = 8203680. Its totient is φ = 7596960.

The previous prime is 7899217. The next prime is 7899239. The reversal of 7899223 is 3229987.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 7899223 - 2¹³ = 7891031 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 (7899253) 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 7 ways as a sum of consecutive naturals, for example, 11886 + ... + 12532.

It is an arithmetic number, because the mean of its divisors is an integer number (1025460).

Almost surely, 2^7899223 is an apocalyptic number.

7899223 is a deficient number, since it is larger than the sum of its proper divisors (304457).

7899223 is a wasteful number, since it uses less digits than its factorization.

7899223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1097.

The product of its digits is 54432, while the sum is 40.

The square root of 7899223 is about 2810.5556390152. Note that the first 3 decimals coincide. The cubic root of 7899223 is about 199.1566403882.

The spelling of 7899223 in words is "seven million, eight hundred ninety-nine thousand, two hundred twenty-three".