388380071 has 2 divisors, whose sum is σ = 388380072. Its totient is φ = 388380070.

The previous prime is 388380049. The next prime is 388380077. The reversal of 388380071 is 170083883.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 388380071 - 2¹⁸ = 388117927 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (388380077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 194190035 + 194190036.

It is an arithmetic number, because the mean of its divisors is an integer number (194190036).

Almost surely, 2^388380071 is an apocalyptic number.

388380071 is a deficient number, since it is larger than the sum of its proper divisors (1).

388380071 is an equidigital number, since it uses as much as digits as its factorization.

388380071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32256, while the sum is 38.

The square root of 388380071 is about 19707.3608329477. The cubic root of 388380071 is about 729.6013780406.

The spelling of 388380071 in words is "three hundred eighty-eight million, three hundred eighty thousand, seventy-one".