12683722 has 4 divisors (see below), whose sum is σ = 19025586. Its totient is φ = 6341860.

The previous prime is 12683689. The next prime is 12683779. The reversal of 12683722 is 22738621.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22738621 = 1451 ⋅15671.

It can be written as a sum of positive squares in only one way, i.e., 12524521 + 159201 = 3539^2 + 399^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3170929 + ... + 3170932.

Almost surely, 2^12683722 is an apocalyptic number.

12683722 is a deficient number, since it is larger than the sum of its proper divisors (6341864).

12683722 is an equidigital number, since it uses as much as digits as its factorization.

12683722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6341863.

The product of its digits is 8064, while the sum is 31.

The square root of 12683722 is about 3561.4213454743. The cubic root of 12683722 is about 233.2109321744.

The spelling of 12683722 in words is "twelve million, six hundred eighty-three thousand, seven hundred twenty-two".