12723034 has 4 divisors (see below), whose sum is σ = 19084554. Its totient is φ = 6361516.

The previous prime is 12723031. The next prime is 12723059. The reversal of 12723034 is 43032721.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 12623809 + 99225 = 3553^2 + 315^2 .

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 12722996 and 12723014.

It is not an unprimeable number, because it can be changed into a prime (12723031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3180757 + ... + 3180760.

Almost surely, 2^12723034 is an apocalyptic number.

12723034 is a deficient number, since it is larger than the sum of its proper divisors (6361520).

12723034 is an equidigital number, since it uses as much as digits as its factorization.

12723034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6361519.

The product of its (nonzero) digits is 1008, while the sum is 22.

The square root of 12723034 is about 3566.9362203437. The cubic root of 12723034 is about 233.4516221093.

Adding to 12723034 its reverse (43032721), we get a palindrome (55755755).

The spelling of 12723034 in words is "twelve million, seven hundred twenty-three thousand, thirty-four".