196939 has 4 divisors (see below), whose sum is σ = 203760. Its totient is φ = 190120.

The previous prime is 196927. The next prime is 196961. The reversal of 196939 is 939691.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 939691 = 617 ⋅1523.

It is a cyclic number.

It is not a de Polignac number, because 196939 - 2⁵ = 196907 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 196898 and 196907.

It is not an unprimeable number, because it can be changed into a prime (196919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3367 + ... + 3424.

It is an arithmetic number, because the mean of its divisors is an integer number (50940).

2¹⁹⁶⁹³⁹ is an apocalyptic number.

196939 is a deficient number, since it is larger than the sum of its proper divisors (6821).

196939 is an equidigital number, since it uses as much as digits as its factorization.

196939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6820.

The product of its digits is 13122, while the sum is 37.

The square root of 196939 is about 443.7780977020. The cubic root of 196939 is about 58.1804723440.

It can be divided in two parts, 19 and 6939, that multiplied together give a triangular number (131841 = T₅₁₃).

The spelling of 196939 in words is "one hundred ninety-six thousand, nine hundred thirty-nine".