1268723 has 4 divisors (see below), whose sum is σ = 1272888. Its totient is φ = 1264560.

The previous prime is 1268713. The next prime is 1268731. The reversal of 1268723 is 3278621.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1268723 - 2⁸ = 1268467 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1268713) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1586 + ... + 2247.

It is an arithmetic number, because the mean of its divisors is an integer number (318222).

2^1268723 is an apocalyptic number.

1268723 is a deficient number, since it is larger than the sum of its proper divisors (4165).

1268723 is an equidigital number, since it uses as much as digits as its factorization.

1268723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4164.

The product of its digits is 4032, while the sum is 29.

The square root of 1268723 is about 1126.3760473306. The cubic root of 1268723 is about 108.2569044091.

It can be divided in two parts, 1268 and 723, that added together give a palindrome (1991).

The spelling of 1268723 in words is "one million, two hundred sixty-eight thousand, seven hundred twenty-three".