195879397 has 8 divisors (see below), whose sum is σ = 223977600. Its totient is φ = 167810064.

The previous prime is 195879377. The next prime is 195879401. The reversal of 195879397 is 793978591.

It is a happy number.

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 195879397 - 2²³ = 187490789 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195879317) 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, 10104 + ... + 22222.

It is an arithmetic number, because the mean of its divisors is an integer number (27997200).

Almost surely, 2^195879397 is an apocalyptic number.

It is an amenable number.

195879397 is a deficient number, since it is larger than the sum of its proper divisors (28098203).

195879397 is a wasteful number, since it uses less digits than its factorization.

195879397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14435.

The product of its digits is 4286520, while the sum is 58.

The square root of 195879397 is about 13995.6920872103. The cubic root of 195879397 is about 580.7594065665.

The spelling of 195879397 in words is "one hundred ninety-five million, eight hundred seventy-nine thousand, three hundred ninety-seven".