388673971 has 8 divisors (see below), whose sum is σ = 445474400. Its totient is φ = 332192448.

The previous prime is 388673953. The next prime is 388673981. The reversal of 388673971 is 179376883.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 388673971 - 2⁷ = 388673843 is a prime.

It is not an unprimeable number, because it can be changed into a prime (388673981) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77106 + ... + 81991.

It is an arithmetic number, because the mean of its divisors is an integer number (55684300).

Almost surely, 2^388673971 is an apocalyptic number.

388673971 is a deficient number, since it is larger than the sum of its proper divisors (56800429).

388673971 is a wasteful number, since it uses less digits than its factorization.

388673971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159453.

The product of its digits is 1524096, while the sum is 52.

The square root of 388673971 is about 19714.8160275464. The cubic root of 388673971 is about 729.7853694406.

The spelling of 388673971 in words is "three hundred eighty-eight million, six hundred seventy-three thousand, nine hundred seventy-one".