389149799 has 4 divisors (see below), whose sum is σ = 389283840. Its totient is φ = 389015760.

The previous prime is 389149769. The next prime is 389149807. The reversal of 389149799 is 997941983.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 997941983 = 79 ⋅12632177.

It is a cyclic number.

It is not a de Polignac number, because 389149799 - 2¹⁶ = 389084263 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (389149769) 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 3 ways as a sum of consecutive naturals, for example, 62567 + ... + 68504.

It is an arithmetic number, because the mean of its divisors is an integer number (97320960).

Almost surely, 2^389149799 is an apocalyptic number.

389149799 is a deficient number, since it is larger than the sum of its proper divisors (134041).

389149799 is a wasteful number, since it uses less digits than its factorization.

389149799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134040.

The product of its digits is 4408992, while the sum is 59.

The square root of 389149799 is about 19726.8801131857. The cubic root of 389149799 is about 730.0830574164.

The spelling of 389149799 in words is "three hundred eighty-nine million, one hundred forty-nine thousand, seven hundred ninety-nine".