196067691 has 24 divisors (see below), whose sum is σ = 290234880. Its totient is φ = 127488816.

The previous prime is 196067639. The next prime is 196067693. The reversal of 196067691 is 196760691.

It is not a de Polignac number, because 196067691 - 2¹⁷ = 195936619 is a prime.

It is not an unprimeable number, because it can be changed into a prime (196067693) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 159706 + ... + 160928.

It is an arithmetic number, because the mean of its divisors is an integer number (12093120).

Almost surely, 2^196067691 is an apocalyptic number.

196067691 is a deficient number, since it is larger than the sum of its proper divisors (94167189).

196067691 is a wasteful number, since it uses less digits than its factorization.

196067691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1655 (or 1652 counting only the distinct ones).

The product of its (nonzero) digits is 122472, while the sum is 45.

The square root of 196067691 is about 14002.4173270189. The cubic root of 196067691 is about 580.9454368356.

The spelling of 196067691 in words is "one hundred ninety-six million, sixty-seven thousand, six hundred ninety-one".