196758978 has 32 divisors (see below), whose sum is σ = 425124672. Its totient is φ = 60350400.

The previous prime is 196758931. The next prime is 196759001. The reversal of 196758978 is 879857691.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22008 + ... + 29628.

It is an arithmetic number, because the mean of its divisors is an integer number (13285146).

Almost surely, 2^196758978 is an apocalyptic number.

196758978 is an abundant number, since it is smaller than the sum of its proper divisors (228365694).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

196758978 is a wasteful number, since it uses less digits than its factorization.

196758978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7970.

The product of its digits is 7620480, while the sum is 60.

The square root of 196758978 is about 14027.0801665920. The cubic root of 196758978 is about 581.6273934380.

The spelling of 196758978 in words is "one hundred ninety-six million, seven hundred fifty-eight thousand, nine hundred seventy-eight".