195680677 has 4 divisors (see below), whose sum is σ = 205979680. Its totient is φ = 185381676.

The previous prime is 195680627. The next prime is 195680687. The reversal of 195680677 is 776086591.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 195680677 - 2¹¹ = 195678629 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 195680677.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195680627) 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, 5149473 + ... + 5149510.

It is an arithmetic number, because the mean of its divisors is an integer number (51494920).

Almost surely, 2^195680677 is an apocalyptic number.

It is an amenable number.

195680677 is a deficient number, since it is larger than the sum of its proper divisors (10299003).

195680677 is a wasteful number, since it uses less digits than its factorization.

195680677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10299002.

The product of its (nonzero) digits is 635040, while the sum is 49.

The square root of 195680677 is about 13988.5909583489. The cubic root of 195680677 is about 580.5629462948.

The spelling of 195680677 in words is "one hundred ninety-five million, six hundred eighty thousand, six hundred seventy-seven".