196506769 has 4 divisors (see below), whose sum is σ = 197712496. Its totient is φ = 195301044.

The previous prime is 196506763. The next prime is 196506781. The reversal of 196506769 is 967605691.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 967605691 = 13 ⋅74431207.

It is a cyclic number.

It is not a de Polignac number, because 196506769 - 2²¹ = 194409617 is a prime.

It is a super-2 number, since 2×196506769² = 77229820525638722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (196506763) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 602619 + ... + 602944.

It is an arithmetic number, because the mean of its divisors is an integer number (49428124).

Almost surely, 2^196506769 is an apocalyptic number.

It is an amenable number.

196506769 is a deficient number, since it is larger than the sum of its proper divisors (1205727).

196506769 is a wasteful number, since it uses less digits than its factorization.

196506769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1205726.

The product of its (nonzero) digits is 612360, while the sum is 49.

The square root of 196506769 is about 14018.0872090311. The cubic root of 196506769 is about 581.3787738888.

The spelling of 196506769 in words is "one hundred ninety-six million, five hundred six thousand, seven hundred sixty-nine".