387844671 has 16 divisors (see below), whose sum is σ = 528277248. Its totient is φ = 253041600.

The previous prime is 387844669. The next prime is 387844687. The reversal of 387844671 is 176448783.

It is not a de Polignac number, because 387844671 - 2¹ = 387844669 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 387844671.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (387844601) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22536 + ... + 35826.

It is an arithmetic number, because the mean of its divisors is an integer number (33017328).

Almost surely, 2^387844671 is an apocalyptic number.

387844671 is a deficient number, since it is larger than the sum of its proper divisors (140432577).

387844671 is a wasteful number, since it uses less digits than its factorization.

387844671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13502.

The product of its digits is 903168, while the sum is 48.

The square root of 387844671 is about 19693.7723912916. The cubic root of 387844671 is about 729.2659607141.

The spelling of 387844671 in words is "three hundred eighty-seven million, eight hundred forty-four thousand, six hundred seventy-one".