30388223 has 2 divisors, whose sum is σ = 30388224. Its totient is φ = 30388222.

The previous prime is 30388217. The next prime is 30388243. The reversal of 30388223 is 32288303.

It is a weak prime.

It is an emirp because it is prime and its reverse (32288303) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30388223 - 2⁴ = 30388207 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30388243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15194111 + 15194112.

It is an arithmetic number, because the mean of its divisors is an integer number (15194112).

Almost surely, 2^30388223 is an apocalyptic number.

30388223 is a deficient number, since it is larger than the sum of its proper divisors (1).

30388223 is an equidigital number, since it uses as much as digits as its factorization.

30388223 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 30388223 is about 5512.5514056560. The cubic root of 30388223 is about 312.0578425247.

The spelling of 30388223 in words is "thirty million, three hundred eighty-eight thousand, two hundred twenty-three".