195406897 has 8 divisors (see below), whose sum is σ = 224250752. Its totient is φ = 166795200.

The previous prime is 195406847. The next prime is 195406933. The reversal of 195406897 is 798604591.

195406897 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 195406897 - 2⁷ = 195406769 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 195406897.

It is not an unprimeable number, because it can be changed into a prime (195406837) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56229 + ... + 59602.

It is an arithmetic number, because the mean of its divisors is an integer number (28031344).

Almost surely, 2^195406897 is an apocalyptic number.

It is an amenable number.

195406897 is a deficient number, since it is larger than the sum of its proper divisors (28843855).

195406897 is a wasteful number, since it uses less digits than its factorization.

195406897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116079.

The product of its (nonzero) digits is 544320, while the sum is 49.

The square root of 195406897 is about 13978.8017011473. The cubic root of 195406897 is about 580.2920615865.

The spelling of 195406897 in words is "one hundred ninety-five million, four hundred six thousand, eight hundred ninety-seven".