195885829 has 2 divisors, whose sum is σ = 195885830. Its totient is φ = 195885828.

The previous prime is 195885803. The next prime is 195885847. The reversal of 195885829 is 928588591.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 181521729 + 14364100 = 13473^2 + 3790^2 .

It is a cyclic number.

It is not a de Polignac number, because 195885829 - 2¹¹ = 195883781 is a prime.

It is a super-3 number, since 3×195885829³ (a number of 26 digits) contains 333 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 195885829.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (195885029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97942914 + 97942915.

It is an arithmetic number, because the mean of its divisors is an integer number (97942915).

Almost surely, 2^195885829 is an apocalyptic number.

It is an amenable number.

195885829 is a deficient number, since it is larger than the sum of its proper divisors (1).

195885829 is an equidigital number, since it uses as much as digits as its factorization.

195885829 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2073600, while the sum is 55.

The square root of 195885829 is about 13995.9218703164. The cubic root of 195885829 is about 580.7657632052.

It can be divided in two parts, 19588582 and 9, that added together give a palindrome (19588591).

The spelling of 195885829 in words is "one hundred ninety-five million, eight hundred eighty-five thousand, eight hundred twenty-nine".