387372009 has 8 divisors (see below), whose sum is σ = 516904960. Its totient is φ = 258043536.

The previous prime is 387371989. The next prime is 387372017. The reversal of 387372009 is 900273783.

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

It is not a de Polignac number, because 387372009 - 2¹⁶ = 387306473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (387332009) 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, 46642 + ... + 54315.

It is an arithmetic number, because the mean of its divisors is an integer number (64613120).

Almost surely, 2^387372009 is an apocalyptic number.

It is an amenable number.

387372009 is a deficient number, since it is larger than the sum of its proper divisors (129532951).

387372009 is a wasteful number, since it uses less digits than its factorization.

387372009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102239.

The product of its (nonzero) digits is 63504, while the sum is 39.

The square root of 387372009 is about 19681.7684418855. The cubic root of 387372009 is about 728.9695908405.

The spelling of 387372009 in words is "three hundred eighty-seven million, three hundred seventy-two thousand, nine".