388476961 has 2 divisors, whose sum is σ = 388476962. Its totient is φ = 388476960.

The previous prime is 388476947. The next prime is 388477003. The reversal of 388476961 is 169674883.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 294774561 + 93702400 = 17169^2 + 9680^2 .

It is a cyclic number.

It is not a de Polignac number, because 388476961 - 2⁵ = 388476929 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 388476899 and 388476908.

It is not a weakly prime, because it can be changed into another prime (388476931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 194238480 + 194238481.

It is an arithmetic number, because the mean of its divisors is an integer number (194238481).

Almost surely, 2^388476961 is an apocalyptic number.

It is an amenable number.

388476961 is a deficient number, since it is larger than the sum of its proper divisors (1).

388476961 is an equidigital number, since it uses as much as digits as its factorization.

388476961 is an odious number, because the sum of its binary digits is odd.

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

The square root of 388476961 is about 19709.8188982040. The cubic root of 388476961 is about 729.6620447304.

The spelling of 388476961 in words is "three hundred eighty-eight million, four hundred seventy-six thousand, nine hundred sixty-one".