196807829 has 4 divisors (see below), whose sum is σ = 196836300. Its totient is φ = 196779360.

The previous prime is 196807823. The next prime is 196807837. The reversal of 196807829 is 928708691.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 86452804 + 110355025 = 9298^2 + 10505^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-196807829 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 (196807823) 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, 3497 + ... + 20145.

It is an arithmetic number, because the mean of its divisors is an integer number (49209075).

Almost surely, 2^196807829 is an apocalyptic number.

It is an amenable number.

196807829 is a deficient number, since it is larger than the sum of its proper divisors (28471).

196807829 is a wasteful number, since it uses less digits than its factorization.

196807829 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28470.

The product of its (nonzero) digits is 435456, while the sum is 50.

The square root of 196807829 is about 14028.8213688820. The cubic root of 196807829 is about 581.6755246236.

The spelling of 196807829 in words is "one hundred ninety-six million, eight hundred seven thousand, eight hundred twenty-nine".