39349879 has 4 divisors (see below), whose sum is σ = 39366000. Its totient is φ = 39333760.

The previous prime is 39349867. The next prime is 39349901. The reversal of 39349879 is 97894393.

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 39349879 - 2¹⁵ = 39317111 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 (39349829) 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, 3562 + ... + 9559.

It is an arithmetic number, because the mean of its divisors is an integer number (9841500).

Almost surely, 2^39349879 is an apocalyptic number.

39349879 is a deficient number, since it is larger than the sum of its proper divisors (16121).

39349879 is a wasteful number, since it uses less digits than its factorization.

39349879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16120.

The product of its digits is 1469664, while the sum is 52.

The square root of 39349879 is about 6272.9481904444. The cubic root of 39349879 is about 340.1322409466.

The spelling of 39349879 in words is "thirty-nine million, three hundred forty-nine thousand, eight hundred seventy-nine".