389253523 has 4 divisors (see below), whose sum is σ = 389427048. Its totient is φ = 389080000.

The previous prime is 389253511. The next prime is 389253533. The reversal of 389253523 is 325352983.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-389253523 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (389253533) 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, 83353 + ... + 87898.

It is an arithmetic number, because the mean of its divisors is an integer number (97356762).

Almost surely, 2^389253523 is an apocalyptic number.

389253523 is a deficient number, since it is larger than the sum of its proper divisors (173525).

389253523 is a wasteful number, since it uses less digits than its factorization.

389253523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173524.

The product of its digits is 194400, while the sum is 40.

The square root of 389253523 is about 19729.5089396569. The cubic root of 389253523 is about 730.1479171081.

The spelling of 389253523 in words is "three hundred eighty-nine million, two hundred fifty-three thousand, five hundred twenty-three".