387130817 has 12 divisors (see below), whose sum is σ = 412843776. Its totient is φ = 362940480.

The previous prime is 387130813. The next prime is 387130847. The reversal of 387130817 is 718031783.

It is not a de Polignac number, because 387130817 - 2² = 387130813 is a prime.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (387130811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 75848 + ... + 80790.

It is an arithmetic number, because the mean of its divisors is an integer number (34403648).

Almost surely, 2^387130817 is an apocalyptic number.

It is an amenable number.

387130817 is a deficient number, since it is larger than the sum of its proper divisors (25712959).

387130817 is a wasteful number, since it uses less digits than its factorization.

387130817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5248 (or 5231 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 38.

The square root of 387130817 is about 19675.6401928883. The cubic root of 387130817 is about 728.8182650408.

The spelling of 387130817 in words is "three hundred eighty-seven million, one hundred thirty thousand, eight hundred seventeen".