2078723 has 2 divisors, whose sum is σ = 2078724. Its totient is φ = 2078722.

The previous prime is 2078719. The next prime is 2078731. The reversal of 2078723 is 3278702.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2078723 - 2² = 2078719 is a prime.

It is not a weakly prime, because it can be changed into another prime (2078753) 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, 1039361 + 1039362.

It is an arithmetic number, because the mean of its divisors is an integer number (1039362).

2^2078723 is an apocalyptic number.

2078723 is a deficient number, since it is larger than the sum of its proper divisors (1).

2078723 is an equidigital number, since it uses as much as digits as its factorization.

2078723 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4704, while the sum is 29.

The square root of 2078723 is about 1441.7777221195. Note that the first 4 decimals coincide. The cubic root of 2078723 is about 127.6239573665.

The spelling of 2078723 in words is "two million, seventy-eight thousand, seven hundred twenty-three".