388766941 has 2 divisors, whose sum is σ = 388766942. Its totient is φ = 388766940.

The previous prime is 388766933. The next prime is 388766947. The reversal of 388766941 is 149667883.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 272580100 + 116186841 = 16510^2 + 10779^2 .

It is a cyclic number.

It is not a de Polignac number, because 388766941 - 2³ = 388766933 is a prime.

It is a super-2 number, since 2×388766941² = 302279468828994962, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (388766947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 194383470 + 194383471.

It is an arithmetic number, because the mean of its divisors is an integer number (194383471).

Almost surely, 2^388766941 is an apocalyptic number.

It is an amenable number.

388766941 is a deficient number, since it is larger than the sum of its proper divisors (1).

388766941 is an equidigital number, since it uses as much as digits as its factorization.

388766941 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1741824, while the sum is 52.

The square root of 388766941 is about 19717.1737579198. The cubic root of 388766941 is about 729.8435525125.

The spelling of 388766941 in words is "three hundred eighty-eight million, seven hundred sixty-six thousand, nine hundred forty-one".