1673723 has 2 divisors, whose sum is σ = 1673724. Its totient is φ = 1673722.

The previous prime is 1673719. The next prime is 1673731. The reversal of 1673723 is 3273761.

It is a weak prime.

It is an emirp because it is prime and its reverse (3273761) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1673723 - 2² = 1673719 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (1673713) 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 as a sum of consecutive naturals, namely, 836861 + 836862.

It is an arithmetic number, because the mean of its divisors is an integer number (836862).

2^1673723 is an apocalyptic number.

1673723 is a deficient number, since it is larger than the sum of its proper divisors (1).

1673723 is an equidigital number, since it uses as much as digits as its factorization.

1673723 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5292, while the sum is 29.

The square root of 1673723 is about 1293.7244683471. The cubic root of 1673723 is about 118.7301987298.

The spelling of 1673723 in words is "one million, six hundred seventy-three thousand, seven hundred twenty-three".