195888967 has 4 divisors (see below), whose sum is σ = 195948936. Its totient is φ = 195829000.

The previous prime is 195888961. The next prime is 195888971. The reversal of 195888967 is 769888591.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 769888591 = 23 ⋅33473417.

It is a cyclic number.

It is not a de Polignac number, because 195888967 - 2⁷ = 195888839 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 (195888961) 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, 24784 + ... + 31717.

It is an arithmetic number, because the mean of its divisors is an integer number (48987234).

Almost surely, 2^195888967 is an apocalyptic number.

195888967 is a deficient number, since it is larger than the sum of its proper divisors (59969).

195888967 is an equidigital number, since it uses as much as digits as its factorization.

195888967 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59968.

The product of its digits is 8709120, while the sum is 61.

The square root of 195888967 is about 13996.0339739513. The cubic root of 195888967 is about 580.7688643879.

The spelling of 195888967 in words is "one hundred ninety-five million, eight hundred eighty-eight thousand, nine hundred sixty-seven".