12779408 has 10 divisors (see below), whose sum is σ = 24760134. Its totient is φ = 6389696.

The previous prime is 12779407. The next prime is 12779411. The reversal of 12779408 is 80497721.

It can be written as a sum of positive squares in only one way, i.e., 12306064 + 473344 = 3508^2 + 688^2 .

It is not an unprimeable number, because it can be changed into a prime (12779407) 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 as a sum of consecutive naturals, namely, 399341 + ... + 399372.

Almost surely, 2^12779408 is an apocalyptic number.

It is an amenable number.

12779408 is a deficient number, since it is larger than the sum of its proper divisors (11980726).

12779408 is an equidigital number, since it uses as much as digits as its factorization.

12779408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 798721 (or 798715 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 38.

The square root of 12779408 is about 3574.8297861577. The cubic root of 12779408 is about 233.7959113685.

The spelling of 12779408 in words is "twelve million, seven hundred seventy-nine thousand, four hundred eight".