383879609 has 4 divisors (see below), whose sum is σ = 383922816. Its totient is φ = 383836404.

The previous prime is 383879581. The next prime is 383879611. The reversal of 383879609 is 906978383.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-383879609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (383879809) 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, 2849 + ... + 27854.

It is an arithmetic number, because the mean of its divisors is an integer number (95980704).

Almost surely, 2^383879609 is an apocalyptic number.

It is an amenable number.

383879609 is a deficient number, since it is larger than the sum of its proper divisors (43207).

383879609 is a wasteful number, since it uses less digits than its factorization.

383879609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43206.

The product of its (nonzero) digits is 1959552, while the sum is 53.

The square root of 383879609 is about 19592.8458627122. The cubic root of 383879609 is about 726.7722691358.

The spelling of 383879609 in words is "three hundred eighty-three million, eight hundred seventy-nine thousand, six hundred nine".