388870379 has 2 divisors, whose sum is σ = 388870380. Its totient is φ = 388870378.

The previous prime is 388870373. The next prime is 388870409. The reversal of 388870379 is 973078883.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 388870379 - 2⁸ = 388870123 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 388870379.

It is not a weakly prime, because it can be changed into another prime (388870373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 194435189 + 194435190.

It is an arithmetic number, because the mean of its divisors is an integer number (194435190).

Almost surely, 2^388870379 is an apocalyptic number.

388870379 is a deficient number, since it is larger than the sum of its proper divisors (1).

388870379 is an equidigital number, since it uses as much as digits as its factorization.

388870379 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2032128, while the sum is 53.

The square root of 388870379 is about 19719.7966267403. The cubic root of 388870379 is about 729.9082758339.

The spelling of 388870379 in words is "three hundred eighty-eight million, eight hundred seventy thousand, three hundred seventy-nine".