388671277 has 8 divisors (see below), whose sum is σ = 413726400. Its totient is φ = 364076064.

The previous prime is 388671271. The next prime is 388671287. The reversal of 388671277 is 772176883.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-388671277 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 388671277.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (388671271) 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, 113233 + ... + 116614.

It is an arithmetic number, because the mean of its divisors is an integer number (51715800).

Almost surely, 2^388671277 is an apocalyptic number.

It is an amenable number.

388671277 is a deficient number, since it is larger than the sum of its proper divisors (25055123).

388671277 is a wasteful number, since it uses less digits than its factorization.

388671277 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229955.

The product of its digits is 790272, while the sum is 49.

The square root of 388671277 is about 19714.7477031790. The cubic root of 388671277 is about 729.7836833262.

The spelling of 388671277 in words is "three hundred eighty-eight million, six hundred seventy-one thousand, two hundred seventy-seven".