6772796209 has 27 divisors (see below), whose sum is σ = 7423026987. Its totient is φ = 6178200384.

The previous prime is 6772796201. The next prime is 6772796281. The reversal of 6772796209 is 9026972776.

The square root of 6772796209 is 82297.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 5272938225 + 1499857984 = 72615^2 + 38728^2 .

It is not a de Polignac number, because 6772796209 - 2³ = 6772796201 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6772796209.

It is not an unprimeable number, because it can be changed into a prime (6772796201) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 65755252 + ... + 65755354.

Almost surely, 2^6772796209 is an apocalyptic number.

6772796209 is the 82297-th square number.

6772796209 is the 41149-th centered octagonal number.

It is an amenable number.

6772796209 is a deficient number, since it is larger than the sum of its proper divisors (650230778).

6772796209 is an equidigital number, since it uses as much as digits as its factorization.

6772796209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334 (or 167 counting only the distinct ones).

The product of its (nonzero) digits is 4000752, while the sum is 55.

The cubic root of 6772796209 is about 1892.0066971598.

The spelling of 6772796209 in words is "six billion, seven hundred seventy-two million, seven hundred ninety-six thousand, two hundred nine".