388998223 has 2 divisors, whose sum is σ = 388998224. Its totient is φ = 388998222.

The previous prime is 388998209. The next prime is 388998293. The reversal of 388998223 is 322899883.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 388998223 - 2¹³ = 388990031 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (388998293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 194499111 + 194499112.

It is an arithmetic number, because the mean of its divisors is an integer number (194499112).

Almost surely, 2^388998223 is an apocalyptic number.

388998223 is a deficient number, since it is larger than the sum of its proper divisors (1).

388998223 is an equidigital number, since it uses as much as digits as its factorization.

388998223 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1492992, while the sum is 52.

The square root of 388998223 is about 19723.0378745263. The cubic root of 388998223 is about 729.9882546431.

The spelling of 388998223 in words is "three hundred eighty-eight million, nine hundred ninety-eight thousand, two hundred twenty-three".