12743930 has 16 divisors (see below), whose sum is σ = 23059080. Its totient is φ = 5070912.

The previous prime is 12743923. The next prime is 12743933. The reversal of 12743930 is 3934721.

It can be written as a sum of positive squares in 4 ways, for example, as 10621081 + 2122849 = 3259^2 + 1457^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12743893 and 12743902.

It is not an unprimeable number, because it can be changed into a prime (12743933) 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 7 ways as a sum of consecutive naturals, for example, 1265 + ... + 5204.

Almost surely, 2^12743930 is an apocalyptic number.

12743930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12743930 is a deficient number, since it is larger than the sum of its proper divisors (10315150).

12743930 is a wasteful number, since it uses less digits than its factorization.

12743930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6673.

The product of its (nonzero) digits is 4536, while the sum is 29.

The square root of 12743930 is about 3569.8641430732. The cubic root of 12743930 is about 233.5793572841.

The spelling of 12743930 in words is "twelve million, seven hundred forty-three thousand, nine hundred thirty".