38379709 has 4 divisors (see below), whose sum is σ = 40048416. Its totient is φ = 36711004.

The previous prime is 38379703. The next prime is 38379721. The reversal of 38379709 is 90797383.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 38379709 - 2⁹ = 38379197 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 (38379703) 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, 834319 + ... + 834364.

It is an arithmetic number, because the mean of its divisors is an integer number (10012104).

Almost surely, 2^38379709 is an apocalyptic number.

It is an amenable number.

38379709 is a deficient number, since it is larger than the sum of its proper divisors (1668707).

38379709 is a wasteful number, since it uses less digits than its factorization.

38379709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1668706.

The product of its (nonzero) digits is 285768, while the sum is 46.

The square root of 38379709 is about 6195.1359145704. The cubic root of 38379709 is about 337.3136317196.

The spelling of 38379709 in words is "thirty-eight million, three hundred seventy-nine thousand, seven hundred nine".