196788815 has 8 divisors (see below), whose sum is σ = 236552400. Its totient is φ = 157160512.

The previous prime is 196788799. The next prime is 196788827. The reversal of 196788815 is 518887691.

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 196788815 - 2⁴ = 196788799 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30590 + ... + 36459.

It is an arithmetic number, because the mean of its divisors is an integer number (29569050).

Almost surely, 2^196788815 is an apocalyptic number.

196788815 is a deficient number, since it is larger than the sum of its proper divisors (39763585).

196788815 is an equidigital number, since it uses as much as digits as its factorization.

196788815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67641.

The product of its digits is 967680, while the sum is 53.

The square root of 196788815 is about 14028.1436761961. The cubic root of 196788815 is about 581.6567917397.

The spelling of 196788815 in words is "one hundred ninety-six million, seven hundred eighty-eight thousand, eight hundred fifteen".