12712346 has 4 divisors (see below), whose sum is σ = 19068522. Its totient is φ = 6356172.

The previous prime is 12712321. The next prime is 12712351. The reversal of 12712346 is 64321721.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 64321721 = 79 ⋅814199.

It can be written as a sum of positive squares in only one way, i.e., 11122225 + 1590121 = 3335^2 + 1261^2 .

It is an unprimeable number.

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, 3178085 + ... + 3178088.

Almost surely, 2^12712346 is an apocalyptic number.

12712346 is a deficient number, since it is larger than the sum of its proper divisors (6356176).

12712346 is an equidigital number, since it uses as much as digits as its factorization.

12712346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6356175.

The product of its digits is 2016, while the sum is 26.

The square root of 12712346 is about 3565.4377010404. The cubic root of 12712346 is about 233.3862333574.

The spelling of 12712346 in words is "twelve million, seven hundred twelve thousand, three hundred forty-six".