383979 has 8 divisors (see below), whose sum is σ = 542160. Its totient is φ = 240896.

The previous prime is 383969. The next prime is 383983. The reversal of 383979 is 979383.

It is a happy number.

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 383979 - 2⁴ = 383963 is a prime.

It is not an unprimeable number, because it can be changed into a prime (383909) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3714 + ... + 3815.

It is an arithmetic number, because the mean of its divisors is an integer number (67770).

2³⁸³⁹⁷⁹ is an apocalyptic number.

383979 is a deficient number, since it is larger than the sum of its proper divisors (158181).

383979 is a wasteful number, since it uses less digits than its factorization.

383979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7549.

The product of its digits is 40824, while the sum is 39.

The square root of 383979 is about 619.6603908594. The cubic root of 383979 is about 72.6834987054.

The spelling of 383979 in words is "three hundred eighty-three thousand, nine hundred seventy-nine".