1742723 has 2 divisors, whose sum is σ = 1742724. Its totient is φ = 1742722.

The previous prime is 1742711. The next prime is 1742731. The reversal of 1742723 is 3272471.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1742723 - 2⁴ = 1742707 is a prime.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 1742692 and 1742701.

It is not a weakly prime, because it can be changed into another prime (1742753) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 871361 + 871362.

It is an arithmetic number, because the mean of its divisors is an integer number (871362).

2^1742723 is an apocalyptic number.

1742723 is a deficient number, since it is larger than the sum of its proper divisors (1).

1742723 is an equidigital number, since it uses as much as digits as its factorization.

1742723 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2352, while the sum is 26.

The square root of 1742723 is about 1320.1223428152. The cubic root of 1742723 is about 120.3398468111.

The spelling of 1742723 in words is "one million, seven hundred forty-two thousand, seven hundred twenty-three".