196988871 has 8 divisors (see below), whose sum is σ = 262753920. Its totient is φ = 131274872.

The previous prime is 196988807. The next prime is 196988873. The reversal of 196988871 is 178889691.

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 196988871 - 2⁶ = 196988807 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (196988873) 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, 2601 + ... + 20018.

It is an arithmetic number, because the mean of its divisors is an integer number (32844240).

Almost surely, 2^196988871 is an apocalyptic number.

196988871 is a deficient number, since it is larger than the sum of its proper divisors (65765049).

196988871 is a wasteful number, since it uses less digits than its factorization.

196988871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25525.

The product of its digits is 1741824, while the sum is 57.

The square root of 196988871 is about 14035.2723878092. The cubic root of 196988871 is about 581.8538295667.

The spelling of 196988871 in words is "one hundred ninety-six million, nine hundred eighty-eight thousand, eight hundred seventy-one".