1723369 has 2 divisors, whose sum is σ = 1723370. Its totient is φ = 1723368.

The previous prime is 1723361. The next prime is 1723417. The reversal of 1723369 is 9633271.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1721344 + 2025 = 1312^2 + 45^2 .

It is a cyclic number.

It is not a de Polignac number, because 1723369 - 2³ = 1723361 is a prime.

It is a super-2 number, since 2×1723369² = 5940001420322, which contains 22 as substring.

It is a d-powerful number, because it can be written as 1 + 7² + 2¹⁵ + 3⁷ + 3⁷ + 6⁸ + 9⁴ .

It is a self number, because there is not a number n which added to its sum of digits gives 1723369.

It is not a weakly prime, because it can be changed into another prime (1723361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 861684 + 861685.

It is an arithmetic number, because the mean of its divisors is an integer number (861685).

2^1723369 is an apocalyptic number.

It is an amenable number.

1723369 is a deficient number, since it is larger than the sum of its proper divisors (1).

1723369 is an equidigital number, since it uses as much as digits as its factorization.

1723369 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6804, while the sum is 31.

The square root of 1723369 is about 1312.7714957296. The cubic root of 1723369 is about 119.8927050194.

The spelling of 1723369 in words is "one million, seven hundred twenty-three thousand, three hundred sixty-nine".