389497249 has 8 divisors (see below), whose sum is σ = 406812672. Its totient is φ = 372213600.

The previous prime is 389497247. The next prime is 389497259. The reversal of 389497249 is 942794983.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 389497249 - 2¹ = 389497247 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 389497249.

It is not an unprimeable number, because it can be changed into a prime (389497247) 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, 19117 + ... + 33829.

It is an arithmetic number, because the mean of its divisors is an integer number (50851584).

Almost surely, 2^389497249 is an apocalyptic number.

It is an amenable number.

389497249 is a deficient number, since it is larger than the sum of its proper divisors (17315423).

389497249 is a wasteful number, since it uses less digits than its factorization.

389497249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15887.

The product of its digits is 3919104, while the sum is 55.

The square root of 389497249 is about 19735.6846600264. The cubic root of 389497249 is about 730.3002761681.

The spelling of 389497249 in words is "three hundred eighty-nine million, four hundred ninety-seven thousand, two hundred forty-nine".