388256983 has 2 divisors, whose sum is σ = 388256984. Its totient is φ = 388256982.

The previous prime is 388256977. The next prime is 388257011. The reversal of 388256983 is 389652883.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-388256983 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 388256983.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (388256923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 194128491 + 194128492.

It is an arithmetic number, because the mean of its divisors is an integer number (194128492).

Almost surely, 2^388256983 is an apocalyptic number.

388256983 is a deficient number, since it is larger than the sum of its proper divisors (1).

388256983 is an equidigital number, since it uses as much as digits as its factorization.

388256983 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2488320, while the sum is 52.

The square root of 388256983 is about 19704.2376914206. The cubic root of 388256983 is about 729.5242931865.

The spelling of 388256983 in words is "three hundred eighty-eight million, two hundred fifty-six thousand, nine hundred eighty-three".