1323671 has 4 divisors (see below), whose sum is σ = 1401552. Its totient is φ = 1245792.

The previous prime is 1323659. The next prime is 1323689. The reversal of 1323671 is 1763231.

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 1323671 - 2¹⁸ = 1061527 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1323611) 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, 38915 + ... + 38948.

It is an arithmetic number, because the mean of its divisors is an integer number (350388).

2^1323671 is an apocalyptic number.

1323671 is a deficient number, since it is larger than the sum of its proper divisors (77881).

1323671 is an equidigital number, since it uses as much as digits as its factorization.

1323671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77880.

The product of its digits is 756, while the sum is 23.

The square root of 1323671 is about 1150.5090177830. The cubic root of 1323671 is about 109.7977274544.

The spelling of 1323671 in words is "one million, three hundred twenty-three thousand, six hundred seventy-one".