196520439 has 16 divisors (see below), whose sum is σ = 284718080. Its totient is φ = 120113280.

The previous prime is 196520437. The next prime is 196520491. The reversal of 196520439 is 934025691.

It is not a de Polignac number, because 196520439 - 2¹ = 196520437 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 196520397 and 196520406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (196520437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53842 + ... + 57375.

It is an arithmetic number, because the mean of its divisors is an integer number (17794880).

Almost surely, 2^196520439 is an apocalyptic number.

196520439 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

196520439 is a deficient number, since it is larger than the sum of its proper divisors (88197641).

196520439 is a wasteful number, since it uses less digits than its factorization.

196520439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111270.

The product of its (nonzero) digits is 58320, while the sum is 39.

The square root of 196520439 is about 14018.5747849059. The cubic root of 196520439 is about 581.3922547875.

The spelling of 196520439 in words is "one hundred ninety-six million, five hundred twenty thousand, four hundred thirty-nine".