1323873 has 6 divisors (see below), whose sum is σ = 1912274. Its totient is φ = 882576.

The previous prime is 1323871. The next prime is 1323877. The reversal of 1323873 is 3783231.

It can be written as a sum of positive squares in only one way, i.e., 1306449 + 17424 = 1143^2 + 132^2 .

It is not a de Polignac number, because 1323873 - 2¹ = 1323871 is a prime.

It is a Duffinian number.

1323873 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1323871) 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, 73540 + ... + 73557.

2^1323873 is an apocalyptic number.

It is an amenable number.

1323873 is a deficient number, since it is larger than the sum of its proper divisors (588401).

1323873 is a wasteful number, since it uses less digits than its factorization.

1323873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147103 (or 147100 counting only the distinct ones).

The product of its digits is 3024, while the sum is 27.

The square root of 1323873 is about 1150.5968016642. The cubic root of 1323873 is about 109.8033124306.

It can be divided in two parts, 132 and 3873, that added together give a triangular number (4005 = T₈₉).

The spelling of 1323873 in words is "one million, three hundred twenty-three thousand, eight hundred seventy-three".