389307 has 4 divisors (see below), whose sum is σ = 519080. Its totient is φ = 259536.

The previous prime is 389303. The next prime is 389357. The reversal of 389307 is 703983.

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

It is not a de Polignac number, because 389307 - 2² = 389303 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (389303) 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, 64882 + ... + 64887.

It is an arithmetic number, because the mean of its divisors is an integer number (129770).

2³⁸⁹³⁰⁷ is an apocalyptic number.

389307 is a deficient number, since it is larger than the sum of its proper divisors (129773).

389307 is a wasteful number, since it uses less digits than its factorization.

389307 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129772.

The product of its (nonzero) digits is 4536, while the sum is 30.

The square root of 389307 is about 623.9447090889. The cubic root of 389307 is about 73.0181352329.

It can be divided in two parts, 389 and 307, that added together give a palindrome (696).

The spelling of 389307 in words is "three hundred eighty-nine thousand, three hundred seven".