196988517 has 20 divisors (see below), whose sum is σ = 321019776. Its totient is φ = 119386440.

The previous prime is 196988507. The next prime is 196988521. The reversal of 196988517 is 715889691.

It is not a de Polignac number, because 196988517 - 2⁴ = 196988501 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (196988507) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 109653 + ... + 111434.

Almost surely, 2^196988517 is an apocalyptic number.

It is an amenable number.

196988517 is a deficient number, since it is larger than the sum of its proper divisors (124031259).

196988517 is a wasteful number, since it uses less digits than its factorization.

196988517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221110 (or 221101 counting only the distinct ones).

The product of its digits is 1088640, while the sum is 54.

The square root of 196988517 is about 14035.2597767195. The cubic root of 196988517 is about 581.8534810252.

The spelling of 196988517 in words is "one hundred ninety-six million, nine hundred eighty-eight thousand, five hundred seventeen".