196987680 has 96 divisors (see below), whose sum is σ = 689472000. Its totient is φ = 52528896.

The previous prime is 196987643. The next prime is 196987751. The reversal of 196987680 is 86789691.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (54).

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, 18480 + ... + 27119.

It is an arithmetic number, because the mean of its divisors is an integer number (7182000).

Almost surely, 2^196987680 is an apocalyptic number.

196987680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

196987680 is an abundant number, since it is smaller than the sum of its proper divisors (492484320).

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

196987680 is a wasteful number, since it uses less digits than its factorization.

196987680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45623 (or 45609 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 54.

The square root of 196987680 is about 14035.2299589284. The cubic root of 196987680 is about 581.8526569297.

The spelling of 196987680 in words is "one hundred ninety-six million, nine hundred eighty-seven thousand, six hundred eighty".