679227844 has 27 divisors (see below), whose sum is σ = 1210854477. Its totient is φ = 333385104.

The previous prime is 679227823. The next prime is 679227847. The reversal of 679227844 is 448722976.

It is a happy number.

The square root of 679227844 is 26062.

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., 199092100 + 480135744 = 14110^2 + 21912^2 .

It is a super-2 number, since 2×679227844² = 922700928129776672, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (679227847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 4326214 + ... + 4326370.

Almost surely, 2^679227844 is an apocalyptic number.

679227844 is the 26062-nd square number.

It is an amenable number.

679227844 is a deficient number, since it is larger than the sum of its proper divisors (531626633).

679227844 is an equidigital number, since it uses as much as digits as its factorization.

679227844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 484 (or 242 counting only the distinct ones).

The product of its digits is 1354752, while the sum is 49.

The cubic root of 679227844 is about 879.0329614638.

Multiplying 679227844 by its sum of digits (49), we get a square (33282164356 = 182434²).

The spelling of 679227844 in words is "six hundred seventy-nine million, two hundred twenty-seven thousand, eight hundred forty-four".