1394906673 has 4 divisors (see below), whose sum is σ = 1859875568. Its totient is φ = 929937780.

The previous prime is 1394906671. The next prime is 1394906707. The reversal of 1394906673 is 3766094931.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3766094931 = 3 ⋅1255364977.

It is not a de Polignac number, because 1394906673 - 2¹ = 1394906671 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1394906671) 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 in 3 ways as a sum of consecutive naturals, for example, 232484443 + ... + 232484448.

It is an arithmetic number, because the mean of its divisors is an integer number (464968892).

Almost surely, 2^1394906673 is an apocalyptic number.

It is an amenable number.

1394906673 is a deficient number, since it is larger than the sum of its proper divisors (464968895).

1394906673 is an equidigital number, since it uses as much as digits as its factorization.

1394906673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 464968894.

The product of its (nonzero) digits is 734832, while the sum is 48.

The square root of 1394906673 is about 37348.4494055643. The cubic root of 1394906673 is about 1117.3306629489.

The spelling of 1394906673 in words is "one billion, three hundred ninety-four million, nine hundred six thousand, six hundred seventy-three".