389574209 has 8 divisors (see below), whose sum is σ = 395408640. Its totient is φ = 383753376.

The previous prime is 389574187. The next prime is 389574217. The reversal of 389574209 is 902475983.

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 389574209 - 2⁸ = 389573953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (389574239) 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, 64184 + ... + 69990.

It is an arithmetic number, because the mean of its divisors is an integer number (49426080).

Almost surely, 2^389574209 is an apocalyptic number.

It is an amenable number.

389574209 is a deficient number, since it is larger than the sum of its proper divisors (5834431).

389574209 is an equidigital number, since it uses as much as digits as its factorization.

389574209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6799.

The product of its (nonzero) digits is 544320, while the sum is 47.

The square root of 389574209 is about 19737.6343313985. The cubic root of 389574209 is about 730.3483725351.

The spelling of 389574209 in words is "three hundred eighty-nine million, five hundred seventy-four thousand, two hundred nine".