1396727173 has 2 divisors, whose sum is σ = 1396727174. Its totient is φ = 1396727172.

The previous prime is 1396727159. The next prime is 1396727219. The reversal of 1396727173 is 3717276931.

It is an a-pointer prime, because the next prime (1396727219) can be obtained adding 1396727173 to its sum of digits (46).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 863948449 + 532778724 = 29393^2 + 23082^2 .

It is a cyclic number.

It is not a de Polignac number, because 1396727173 - 2¹⁷ = 1396596101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1396727113) 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, 698363586 + 698363587.

It is an arithmetic number, because the mean of its divisors is an integer number (698363587).

Almost surely, 2^1396727173 is an apocalyptic number.

It is an amenable number.

1396727173 is a deficient number, since it is larger than the sum of its proper divisors (1).

1396727173 is an equidigital number, since it uses as much as digits as its factorization.

1396727173 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 333396, while the sum is 46.

The square root of 1396727173 is about 37372.8132872012. The cubic root of 1396727173 is about 1117.8165296733.

The spelling of 1396727173 in words is "one billion, three hundred ninety-six million, seven hundred twenty-seven thousand, one hundred seventy-three".