388380347 has 2 divisors, whose sum is σ = 388380348. Its totient is φ = 388380346.

The previous prime is 388380313. The next prime is 388380371. The reversal of 388380347 is 743083883.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 388380347 - 2¹² = 388376251 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 388380298 and 388380307.

It is not a weakly prime, because it can be changed into another prime (388380397) 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, 194190173 + 194190174.

It is an arithmetic number, because the mean of its divisors is an integer number (194190174).

Almost surely, 2^388380347 is an apocalyptic number.

388380347 is a deficient number, since it is larger than the sum of its proper divisors (1).

388380347 is an equidigital number, since it uses as much as digits as its factorization.

388380347 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 387072, while the sum is 44.

The square root of 388380347 is about 19707.3678354061. The cubic root of 388380347 is about 729.6015508695.

The spelling of 388380347 in words is "three hundred eighty-eight million, three hundred eighty thousand, three hundred forty-seven".