196516787 has 8 divisors (see below), whose sum is σ = 211604400. Its totient is φ = 181821184.

The previous prime is 196516777. The next prime is 196516799. The reversal of 196516787 is 787615691.

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 196516787 - 2¹² = 196512691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (196516777) 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, 96962 + ... + 98967.

It is an arithmetic number, because the mean of its divisors is an integer number (26450550).

Almost surely, 2^196516787 is an apocalyptic number.

196516787 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

196516787 is a deficient number, since it is larger than the sum of its proper divisors (15087613).

196516787 is a wasteful number, since it uses less digits than its factorization.

196516787 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196005.

The product of its digits is 635040, while the sum is 50.

The square root of 196516787 is about 14018.4445285488. Note that the first 3 decimals coincide. The cubic root of 196516787 is about 581.3886533680.

The spelling of 196516787 in words is "one hundred ninety-six million, five hundred sixteen thousand, seven hundred eighty-seven".