12722826 has 16 divisors (see below), whose sum is σ = 25521984. Its totient is φ = 4228224.

The previous prime is 12722791. The next prime is 12722849. The reversal of 12722826 is 62822721.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12722793 and 12722802.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 886 + ... + 5121.

It is an arithmetic number, because the mean of its divisors is an integer number (1595124).

Almost surely, 2^12722826 is an apocalyptic number.

12722826 is an abundant number, since it is smaller than the sum of its proper divisors (12799158).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12722826 is a wasteful number, since it uses less digits than its factorization.

12722826 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6365.

The product of its digits is 5376, while the sum is 30.

The square root of 12722826 is about 3566.9070635496. The cubic root of 12722826 is about 233.4503499232.

The spelling of 12722826 in words is "twelve million, seven hundred twenty-two thousand, eight hundred twenty-six".