195368839 has 8 divisors (see below), whose sum is σ = 197708688. Its totient is φ = 193038720.

The previous prime is 195368827. The next prime is 195368857. The reversal of 195368839 is 938863591.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 195368839 - 2¹⁷ = 195237767 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 (195368339) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42879 + ... + 47215.

It is an arithmetic number, because the mean of its divisors is an integer number (24713586).

Almost surely, 2^195368839 is an apocalyptic number.

195368839 is a deficient number, since it is larger than the sum of its proper divisors (2339849).

195368839 is a wasteful number, since it uses less digits than its factorization.

195368839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4865.

The product of its digits is 1399680, while the sum is 52.

The square root of 195368839 is about 13977.4403593791. The cubic root of 195368839 is about 580.2543860327.

The spelling of 195368839 in words is "one hundred ninety-five million, three hundred sixty-eight thousand, eight hundred thirty-nine".