196933209 has 32 divisors (see below), whose sum is σ = 298529280. Its totient is φ = 114422400.

The previous prime is 196933181. The next prime is 196933223. The reversal of 196933209 is 902339691.

It is a happy number.

It is not a de Polignac number, because 196933209 - 2¹³ = 196925017 is a prime.

It is not an unprimeable number, because it can be changed into a prime (196933109) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 78594 + ... + 81060.

It is an arithmetic number, because the mean of its divisors is an integer number (9329040).

Almost surely, 2^196933209 is an apocalyptic number.

It is an amenable number.

196933209 is a deficient number, since it is larger than the sum of its proper divisors (101596071).

196933209 is a wasteful number, since it uses less digits than its factorization.

196933209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2581.

The product of its (nonzero) digits is 78732, while the sum is 42.

The square root of 196933209 is about 14033.2893150537. The cubic root of 196933209 is about 581.7990207194.

The spelling of 196933209 in words is "one hundred ninety-six million, nine hundred thirty-three thousand, two hundred nine".