388879958 has 4 divisors (see below), whose sum is σ = 583319940. Its totient is φ = 194439978.

The previous prime is 388879901. The next prime is 388879961. The reversal of 388879958 is 859978883.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 859978883 = 677 ⋅1270279.

It is a junction number, because it is equal to n+sod(n) for n = 388879894 and 388879903.

It is a congruent number.

It is an unprimeable number.

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, 97219988 + ... + 97219991.

It is an arithmetic number, because the mean of its divisors is an integer number (145829985).

Almost surely, 2^388879958 is an apocalyptic number.

388879958 is a deficient number, since it is larger than the sum of its proper divisors (194439982).

388879958 is a wasteful number, since it uses less digits than its factorization.

388879958 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194439981.

The product of its digits is 34836480, while the sum is 65.

The square root of 388879958 is about 19720.0395030030. The cubic root of 388879958 is about 729.9142690339.

The spelling of 388879958 in words is "three hundred eighty-eight million, eight hundred seventy-nine thousand, nine hundred fifty-eight".