389125399 has 4 divisors (see below), whose sum is σ = 419058136. Its totient is φ = 359192664.

The previous prime is 389125397. The next prime is 389125439. The reversal of 389125399 is 993521983.

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

It is a cyclic number.

It is not a de Polignac number, because 389125399 - 2¹ = 389125397 is a prime.

It is a super-2 number, since 2×389125399² = 302837152293818402, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (389125391) 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, 14966349 + ... + 14966374.

It is an arithmetic number, because the mean of its divisors is an integer number (104764534).

Almost surely, 2^389125399 is an apocalyptic number.

389125399 is a deficient number, since it is larger than the sum of its proper divisors (29932737).

389125399 is a wasteful number, since it uses less digits than its factorization.

389125399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29932736.

The product of its digits is 524880, while the sum is 49.

The square root of 389125399 is about 19726.2616580030. The cubic root of 389125399 is about 730.0677981692.

The spelling of 389125399 in words is "three hundred eighty-nine million, one hundred twenty-five thousand, three hundred ninety-nine".