12822491 has 6 divisors (see below), whose sum is σ = 14094276. Its totient is φ = 11656700.

The previous prime is 12822479. The next prime is 12822503. The reversal of 12822491 is 19422821.

It is an interprime number because it is at equal distance from previous prime (12822479) and next prime (12822503).

It is not a de Polignac number, because 12822491 - 2¹⁸ = 12560347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12822451) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 52865 + ... + 53106.

It is an arithmetic number, because the mean of its divisors is an integer number (2349046).

Almost surely, 2^12822491 is an apocalyptic number.

12822491 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12822491 is a deficient number, since it is larger than the sum of its proper divisors (1271785).

12822491 is a wasteful number, since it uses less digits than its factorization.

12822491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105993 (or 105982 counting only the distinct ones).

The product of its digits is 2304, while the sum is 29.

The square root of 12822491 is about 3580.8505972743. The cubic root of 12822491 is about 234.0583473951.

It can be divided in two parts, 1282 and 2491, that added together give a palindrome (3773).

The spelling of 12822491 in words is "twelve million, eight hundred twenty-two thousand, four hundred ninety-one".