12822731 has 2 divisors, whose sum is σ = 12822732. Its totient is φ = 12822730.

The previous prime is 12822713. The next prime is 12822763. The reversal of 12822731 is 13722821.

12822731 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

Together with previous prime (12822713) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12822731 is a prime.

It is a super-2 number, since 2×12822731² = 328844860596722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12822731.

It is not a weakly prime, because it can be changed into another prime (12822781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6411365 + 6411366.

It is an arithmetic number, because the mean of its divisors is an integer number (6411366).

Almost surely, 2^12822731 is an apocalyptic number.

12822731 is a deficient number, since it is larger than the sum of its proper divisors (1).

12822731 is an equidigital number, since it uses as much as digits as its factorization.

12822731 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1344, while the sum is 26.

The square root of 12822731 is about 3580.8841087084. The cubic root of 12822731 is about 234.0598076848.

The spelling of 12822731 in words is "twelve million, eight hundred twenty-two thousand, seven hundred thirty-one".