387341009 has 4 divisors (see below), whose sum is σ = 422553840. Its totient is φ = 352128180.

The previous prime is 387340957. The next prime is 387341021. The reversal of 387341009 is 900143783.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 387341009 - 2¹² = 387336913 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 387341009.

It is not an unprimeable number, because it can be changed into a prime (387341099) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17606399 + ... + 17606420.

It is an arithmetic number, because the mean of its divisors is an integer number (105638460).

Almost surely, 2^387341009 is an apocalyptic number.

It is an amenable number.

387341009 is a deficient number, since it is larger than the sum of its proper divisors (35212831).

387341009 is a wasteful number, since it uses less digits than its factorization.

387341009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35212830.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 387341009 is about 19680.9808952704. The cubic root of 387341009 is about 728.9501447098.

The spelling of 387341009 in words is "three hundred eighty-seven million, three hundred forty-one thousand, nine".