195997902 has 8 divisors (see below), whose sum is σ = 391995816. Its totient is φ = 65332632.

The previous prime is 195997889. The next prime is 195997931. The reversal of 195997902 is 209799591.

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

195997902 is an admirable number.

It is a congruent number.

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, 16333153 + ... + 16333164.

It is an arithmetic number, because the mean of its divisors is an integer number (48999477).

Almost surely, 2^195997902 is an apocalyptic number.

195997902 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

195997902 is a wasteful number, since it uses less digits than its factorization.

195997902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32666322.

The product of its (nonzero) digits is 459270, while the sum is 51.

The square root of 195997902 is about 13999.9250712281. The cubic root of 195997902 is about 580.8765007584.

The spelling of 195997902 in words is "one hundred ninety-five million, nine hundred ninety-seven thousand, nine hundred two".