1973723 has 2 divisors, whose sum is σ = 1973724. Its totient is φ = 1973722.

The previous prime is 1973689. The next prime is 1973731. The reversal of 1973723 is 3273791.

It is a strong prime.

It is an emirp because it is prime and its reverse (3273791) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1973723 - 2⁸ = 1973467 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1973723.

It is not a weakly prime, because it can be changed into another prime (1979723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 986861 + 986862.

It is an arithmetic number, because the mean of its divisors is an integer number (986862).

2^1973723 is an apocalyptic number.

1973723 is a deficient number, since it is larger than the sum of its proper divisors (1).

1973723 is an equidigital number, since it uses as much as digits as its factorization.

1973723 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7938, while the sum is 32.

The square root of 1973723 is about 1404.8925225796. The cubic root of 1973723 is about 125.4378882399.

The spelling of 1973723 in words is "one million, nine hundred seventy-three thousand, seven hundred twenty-three".