196878692 has 12 divisors (see below), whose sum is σ = 344911980. Its totient is φ = 98332416.

The previous prime is 196878691. The next prime is 196878697. The reversal of 196878692 is 296878691.

It can be written as a sum of positive squares in 2 ways, for example, as 7706176 + 189172516 = 2776^2 + 13754^2 .

It is a super-2 number, since 2×196878692² = 77522438727261728, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (196878691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22517 + ... + 30012.

It is an arithmetic number, because the mean of its divisors is an integer number (28742665).

Almost surely, 2^196878692 is an apocalyptic number.

It is an amenable number.

196878692 is a deficient number, since it is larger than the sum of its proper divisors (148033288).

196878692 is a wasteful number, since it uses less digits than its factorization.

196878692 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53470 (or 53468 counting only the distinct ones).

The product of its digits is 2612736, while the sum is 56.

The square root of 196878692 is about 14031.3467635862. The cubic root of 196878692 is about 581.7453293103.

Subtracting 196878692 from its reverse (296878691), we obtain a palindrome (99999999).

The spelling of 196878692 in words is "one hundred ninety-six million, eight hundred seventy-eight thousand, six hundred ninety-two".