388001039 has 2 divisors, whose sum is σ = 388001040. Its totient is φ = 388001038.

The previous prime is 388000967. The next prime is 388001041. The reversal of 388001039 is 930100883.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-388001039 is a prime.

It is a Sophie Germain prime.

Together with 388001041, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 388000996 and 388001014.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (388001069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 194000519 + 194000520.

It is an arithmetic number, because the mean of its divisors is an integer number (194000520).

Almost surely, 2^388001039 is an apocalyptic number.

388001039 is a deficient number, since it is larger than the sum of its proper divisors (1).

388001039 is an equidigital number, since it uses as much as digits as its factorization.

388001039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 388001039 is about 19697.7419771912. The cubic root of 388001039 is about 729.3639540145.

The spelling of 388001039 in words is "three hundred eighty-eight million, one thousand, thirty-nine".