399070 has 16 divisors (see below), whose sum is σ = 821088. Its totient is φ = 136800.

The previous prime is 399067. The next prime is 399071. The reversal of 399070 is 70993.

399070 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (399071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2781 + ... + 2920.

It is an arithmetic number, because the mean of its divisors is an integer number (51318).

2³⁹⁹⁰⁷⁰ is an apocalyptic number.

399070 is an abundant number, since it is smaller than the sum of its proper divisors (422018).

It is a weird number, because it is abundant, but not a pseudoperfect number.

399070 is a wasteful number, since it uses less digits than its factorization.

399070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5715.

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

The square root of 399070 is about 631.7198746280. The cubic root of 399070 is about 73.6234831729.

The spelling of 399070 in words is "three hundred ninety-nine thousand, seventy".