39828039 has 4 divisors (see below), whose sum is σ = 53104056. Its totient is φ = 26552024.

The previous prime is 39828029. The next prime is 39828067. The reversal of 39828039 is 93082893.

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 39828039 - 2¹⁵ = 39795271 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39828029) 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, 6638004 + ... + 6638009.

It is an arithmetic number, because the mean of its divisors is an integer number (13276014).

Almost surely, 2^39828039 is an apocalyptic number.

39828039 is a deficient number, since it is larger than the sum of its proper divisors (13276017).

39828039 is a wasteful number, since it uses less digits than its factorization.

39828039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13276016.

The product of its (nonzero) digits is 93312, while the sum is 42.

The square root of 39828039 is about 6310.9459671273. The cubic root of 39828039 is about 341.5044034054.

It can be divided in two parts, 3982 and 8039, that added together give a palindrome (12021).

The spelling of 39828039 in words is "thirty-nine million, eight hundred twenty-eight thousand, thirty-nine".