196822729 has 4 divisors (see below), whose sum is σ = 207181840. Its totient is φ = 186463620.

The previous prime is 196822723. The next prime is 196822771. The reversal of 196822729 is 927228691.

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.

It is a cyclic number.

It is not a de Polignac number, because 196822729 - 2⁷ = 196822601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (196822723) 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, 5179527 + ... + 5179564.

It is an arithmetic number, because the mean of its divisors is an integer number (51795460).

Almost surely, 2^196822729 is an apocalyptic number.

196822729 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

196822729 is a deficient number, since it is larger than the sum of its proper divisors (10359111).

196822729 is a wasteful number, since it uses less digits than its factorization.

196822729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10359110.

The product of its digits is 217728, while the sum is 46.

The square root of 196822729 is about 14029.3524084328. The cubic root of 196822729 is about 581.6902034885.

The spelling of 196822729 in words is "one hundred ninety-six million, eight hundred twenty-two thousand, seven hundred twenty-nine".