30028223 has 2 divisors, whose sum is σ = 30028224. Its totient is φ = 30028222.

The previous prime is 30028217. The next prime is 30028231. The reversal of 30028223 is 32282003.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 30028223 - 2²⁰ = 28979647 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30028195 and 30028204.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30028123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15014111 + 15014112.

It is an arithmetic number, because the mean of its divisors is an integer number (15014112).

Almost surely, 2^30028223 is an apocalyptic number.

30028223 is a deficient number, since it is larger than the sum of its proper divisors (1).

30028223 is an equidigital number, since it uses as much as digits as its factorization.

30028223 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 30028223 is about 5479.8013650132. The cubic root of 30028223 is about 310.8206594144.

The spelling of 30028223 in words is "thirty million, twenty-eight thousand, two hundred twenty-three".