389707 has 4 divisors (see below), whose sum is σ = 394720. Its totient is φ = 384696.

The previous prime is 389699. The next prime is 389713. The reversal of 389707 is 707983.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 389707 - 2³ = 389699 is a prime.

It is a Duffinian number.

389707 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (389797) 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 3 ways as a sum of consecutive naturals, for example, 2388 + ... + 2545.

It is an arithmetic number, because the mean of its divisors is an integer number (98680).

2³⁸⁹⁷⁰⁷ is an apocalyptic number.

389707 is a deficient number, since it is larger than the sum of its proper divisors (5013).

389707 is an equidigital number, since it uses as much as digits as its factorization.

389707 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5012.

The product of its (nonzero) digits is 10584, while the sum is 34.

The square root of 389707 is about 624.2651680176. The cubic root of 389707 is about 73.0431345750.

The spelling of 389707 in words is "three hundred eighty-nine thousand, seven hundred seven".