195878798 has 16 divisors (see below), whose sum is σ = 302379264. Its totient is φ = 95117880.

The previous prime is 195878773. The next prime is 195878821. The reversal of 195878798 is 897878591.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 195878798.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4361 + ... + 20267.

It is an arithmetic number, because the mean of its divisors is an integer number (18898704).

Almost surely, 2^195878798 is an apocalyptic number.

195878798 is a deficient number, since it is larger than the sum of its proper divisors (106500466).

195878798 is a wasteful number, since it uses less digits than its factorization.

195878798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16087.

The product of its digits is 10160640, while the sum is 62.

The square root of 195878798 is about 13995.6706877520. The cubic root of 195878798 is about 580.7588145777.

The spelling of 195878798 in words is "one hundred ninety-five million, eight hundred seventy-eight thousand, seven hundred ninety-eight".