39379439 has 4 divisors (see below), whose sum is σ = 42959400. Its totient is φ = 35799480.

The previous prime is 39379423. The next prime is 39379447. The reversal of 39379439 is 93497393.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 93497393 = 11 ⋅8499763.

It is a cyclic number.

It is not a de Polignac number, because 39379439 - 2⁴ = 39379423 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 39379393 and 39379402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39379489) 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, 1789964 + ... + 1789985.

It is an arithmetic number, because the mean of its divisors is an integer number (10739850).

Almost surely, 2^39379439 is an apocalyptic number.

39379439 is a deficient number, since it is larger than the sum of its proper divisors (3579961).

39379439 is a wasteful number, since it uses less digits than its factorization.

39379439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3579960.

The product of its digits is 551124, while the sum is 47.

The square root of 39379439 is about 6275.3038970236. The cubic root of 39379439 is about 340.2173898104.

The spelling of 39379439 in words is "thirty-nine million, three hundred seventy-nine thousand, four hundred thirty-nine".