196778794 has 8 divisors (see below), whose sum is σ = 295973568. Its totient is φ = 98120940.

The previous prime is 196778779. The next prime is 196778797. The reversal of 196778794 is 497877691.

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

It is not an unprimeable number, because it can be changed into a prime (196778797) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 133312 + ... + 134779.

It is an arithmetic number, because the mean of its divisors is an integer number (36996696).

Almost surely, 2^196778794 is an apocalyptic number.

196778794 is a deficient number, since it is larger than the sum of its proper divisors (99194774).

196778794 is a wasteful number, since it uses less digits than its factorization.

196778794 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268460.

The product of its digits is 5334336, while the sum is 58.

The square root of 196778794 is about 14027.7864968070. The cubic root of 196778794 is about 581.6469184116.

The spelling of 196778794 in words is "one hundred ninety-six million, seven hundred seventy-eight thousand, seven hundred ninety-four".