388476941 has 2 divisors, whose sum is σ = 388476942. Its totient is φ = 388476940.

The previous prime is 388476931. The next prime is 388476947. The reversal of 388476941 is 149674883.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 296872900 + 91604041 = 17230^2 + 9571^2 .

It is an emirp because it is prime and its reverse (149674883) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-388476941 is a prime.

It is a super-3 number, since 3×388476941³ (a number of 27 digits) contains 333 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 388476941.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (388476947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 194238470 + 194238471.

It is an arithmetic number, because the mean of its divisors is an integer number (194238471).

Almost surely, 2^388476941 is an apocalyptic number.

It is an amenable number.

388476941 is a deficient number, since it is larger than the sum of its proper divisors (1).

388476941 is an equidigital number, since it uses as much as digits as its factorization.

388476941 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1161216, while the sum is 50.

The square root of 388476941 is about 19709.8183908427. The cubic root of 388476941 is about 729.6620322086.

The spelling of 388476941 in words is "three hundred eighty-eight million, four hundred seventy-six thousand, nine hundred forty-one".