196864678 has 4 divisors (see below), whose sum is σ = 295297020. Its totient is φ = 98432338.

The previous prime is 196864609. The next prime is 196864697. The reversal of 196864678 is 876468691.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49216168 + ... + 49216171.

It is an arithmetic number, because the mean of its divisors is an integer number (73824255).

Almost surely, 2^196864678 is an apocalyptic number.

196864678 is a deficient number, since it is larger than the sum of its proper divisors (98432342).

196864678 is an equidigital number, since it uses as much as digits as its factorization.

196864678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98432341.

The product of its digits is 3483648, while the sum is 55.

The square root of 196864678 is about 14030.8473728425. The cubic root of 196864678 is about 581.7315259332.

The spelling of 196864678 in words is "one hundred ninety-six million, eight hundred sixty-four thousand, six hundred seventy-eight".