389269791 has 12 divisors (see below), whose sum is σ = 595354032. Its totient is φ = 244247616.

The previous prime is 389269781. The next prime is 389269807. The reversal of 389269791 is 197962983.

It is not a de Polignac number, because 389269791 - 2¹⁴ = 389253407 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (389269721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1271971 + ... + 1272276.

It is an arithmetic number, because the mean of its divisors is an integer number (49612836).

Almost surely, 2^389269791 is an apocalyptic number.

389269791 is a deficient number, since it is larger than the sum of its proper divisors (206084241).

389269791 is a wasteful number, since it uses less digits than its factorization.

389269791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2544270 (or 2544267 counting only the distinct ones).

The product of its digits is 1469664, while the sum is 54.

The square root of 389269791 is about 19729.9212111960. The cubic root of 389269791 is about 730.1580886117.

The spelling of 389269791 in words is "three hundred eighty-nine million, two hundred sixty-nine thousand, seven hundred ninety-one".