390079 has 4 divisors (see below), whose sum is σ = 403560. Its totient is φ = 376600.

The previous prime is 390077. The next prime is 390083. The reversal of 390079 is 970093.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 970093 = 67 ⋅14479.

It is a cyclic number.

It is not a de Polignac number, because 390079 - 2¹ = 390077 is a prime.

It is a Duffinian number.

390079 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (390077) 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, 6697 + ... + 6754.

It is an arithmetic number, because the mean of its divisors is an integer number (100890).

2³⁹⁰⁰⁷⁹ is an apocalyptic number.

390079 is a deficient number, since it is larger than the sum of its proper divisors (13481).

390079 is a wasteful number, since it uses less digits than its factorization.

390079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13480.

The product of its (nonzero) digits is 1701, while the sum is 28.

The square root of 390079 is about 624.5630472578. The cubic root of 390079 is about 73.0663686156.

The spelling of 390079 in words is "three hundred ninety thousand, seventy-nine".