387071667 has 24 divisors (see below), whose sum is σ = 599648400. Its totient is φ = 239848128.

The previous prime is 387071621. The next prime is 387071719. The reversal of 387071667 is 766170783.

It is a happy number.

It is not a de Polignac number, because 387071667 - 2⁷ = 387071539 is a prime.

It is not an unprimeable number, because it can be changed into a prime (387071617) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12292 + ... + 30417.

It is an arithmetic number, because the mean of its divisors is an integer number (24985350).

Almost surely, 2^387071667 is an apocalyptic number.

387071667 is a deficient number, since it is larger than the sum of its proper divisors (212576733).

387071667 is a wasteful number, since it uses less digits than its factorization.

387071667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42787 (or 42784 counting only the distinct ones).

The product of its (nonzero) digits is 296352, while the sum is 45.

The square root of 387071667 is about 19674.1370077572. The cubic root of 387071667 is about 728.7811442587.

It can be divided in two parts, 3870716 and 67, that added together give a palindrome (3870783).

The spelling of 387071667 in words is "three hundred eighty-seven million, seventy-one thousand, six hundred sixty-seven".