1296823 has 8 divisors (see below), whose sum is σ = 1460736. Its totient is φ = 1140600.

The previous prime is 1296817. The next prime is 1296829. The reversal of 1296823 is 3286921.

It is an interprime number because it is at equal distance from previous prime (1296817) and next prime (1296829).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1296823 - 2¹⁷ = 1165751 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1296829) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 1561 + ... + 2242.

It is an arithmetic number, because the mean of its divisors is an integer number (182592).

2^1296823 is an apocalyptic number.

1296823 is a deficient number, since it is larger than the sum of its proper divisors (163913).

1296823 is a wasteful number, since it uses less digits than its factorization.

1296823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3845.

The product of its digits is 5184, while the sum is 31.

The square root of 1296823 is about 1138.7813661981. The cubic root of 1296823 is about 109.0503092397.

The spelling of 1296823 in words is "one million, two hundred ninety-six thousand, eight hundred twenty-three".