196986939 has 8 divisors (see below), whose sum is σ = 278099280. Its totient is φ = 123599616.

The previous prime is 196986931. The next prime is 196986941. The reversal of 196986939 is 939689691.

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

It is not a de Polignac number, because 196986939 - 2³ = 196986931 is a prime.

It is not an unprimeable number, because it can be changed into a prime (196986931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1931194 + ... + 1931295.

It is an arithmetic number, because the mean of its divisors is an integer number (34762410).

Almost surely, 2^196986939 is an apocalyptic number.

196986939 is a deficient number, since it is larger than the sum of its proper divisors (81112341).

196986939 is a wasteful number, since it uses less digits than its factorization.

196986939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3862509.

The product of its digits is 5668704, while the sum is 60.

The square root of 196986939 is about 14035.2035610461. The cubic root of 196986939 is about 581.8519273522.

The spelling of 196986939 in words is "one hundred ninety-six million, nine hundred eighty-six thousand, nine hundred thirty-nine".