38789929 has 4 divisors (see below), whose sum is σ = 39004420. Its totient is φ = 38575440.

The previous prime is 38789921. The next prime is 38789941. The reversal of 38789929 is 92998783.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 92998783 = 41 ⋅2268263.

It can be written as a sum of positive squares in 2 ways, for example, as 597529 + 38192400 = 773^2 + 6180^2 .

It is a cyclic number.

It is not a de Polignac number, because 38789929 - 2³ = 38789921 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 38789929.

It is not an unprimeable number, because it can be changed into a prime (38789921) 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, 106974 + ... + 107335.

It is an arithmetic number, because the mean of its divisors is an integer number (9751105).

Almost surely, 2^38789929 is an apocalyptic number.

It is an amenable number.

38789929 is a deficient number, since it is larger than the sum of its proper divisors (214491).

38789929 is a wasteful number, since it uses less digits than its factorization.

38789929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214490.

The product of its digits is 1959552, while the sum is 55.

The square root of 38789929 is about 6228.1561476893. The cubic root of 38789929 is about 338.5111630101.

The spelling of 38789929 in words is "thirty-eight million, seven hundred eighty-nine thousand, nine hundred twenty-nine".