195677992 has 16 divisors (see below), whose sum is σ = 367073460. Its totient is φ = 97791744.

The previous prime is 195677971. The next prime is 195678011. The reversal of 195677992 is 299776591.

It can be written as a sum of positive squares in 2 ways, for example, as 121132036 + 74545956 = 11006^2 + 8634^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16848 + ... + 25984.

Almost surely, 2^195677992 is an apocalyptic number.

It is an amenable number.

195677992 is a deficient number, since it is larger than the sum of its proper divisors (171395468).

195677992 is a wasteful number, since it uses less digits than its factorization.

195677992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11820 (or 11816 counting only the distinct ones).

The product of its digits is 2143260, while the sum is 55.

The square root of 195677992 is about 13988.4949869527. The cubic root of 195677992 is about 580.5602909166.

The spelling of 195677992 in words is "one hundred ninety-five million, six hundred seventy-seven thousand, nine hundred ninety-two".