387866417 has 8 divisors (see below), whose sum is σ = 394162272. Its totient is φ = 381585600.

The previous prime is 387866371. The next prime is 387866429. The reversal of 387866417 is 714668783.

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

It is a cyclic number.

It is not a de Polignac number, because 387866417 - 2¹⁰ = 387865393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (387866467) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 55742 + ... + 62312.

It is an arithmetic number, because the mean of its divisors is an integer number (49270284).

Almost surely, 2^387866417 is an apocalyptic number.

It is an amenable number.

387866417 is a deficient number, since it is larger than the sum of its proper divisors (6295855).

387866417 is an equidigital number, since it uses as much as digits as its factorization.

387866417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7519.

The product of its digits is 1354752, while the sum is 50.

The square root of 387866417 is about 19694.3244870191. The cubic root of 387866417 is about 729.2795901577.

The spelling of 387866417 in words is "three hundred eighty-seven million, eight hundred sixty-six thousand, four hundred seventeen".