2399223 has 4 divisors (see below), whose sum is σ = 3198968. Its totient is φ = 1599480.

The previous prime is 2399213. The next prime is 2399231. The reversal of 2399223 is 3229932.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2399223 - 2⁴ = 2399207 is a prime.

It is a super-3 number, since 3×2399223³ = 41431733359139107701, which contains 333 as substring.

It is an Ulam number.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2399213) 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, 399868 + ... + 399873.

It is an arithmetic number, because the mean of its divisors is an integer number (799742).

2^2399223 is an apocalyptic number.

2399223 is a deficient number, since it is larger than the sum of its proper divisors (799745).

2399223 is an equidigital number, since it uses as much as digits as its factorization.

2399223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 799744.

The product of its digits is 5832, while the sum is 30.

The square root of 2399223 is about 1548.9425425109. The cubic root of 2399223 is about 133.8721398624.

The spelling of 2399223 in words is "two million, three hundred ninety-nine thousand, two hundred twenty-three".