1917314723 has 6 divisors (see below), whose sum is σ = 2036732556. Its totient is φ = 1804531232.

The previous prime is 1917314717. The next prime is 1917314747. The reversal of 1917314723 is 3274137191.

It is not a de Polignac number, because 1917314723 - 2¹² = 1917310627 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1917314713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3316865 + ... + 3317442.

It is an arithmetic number, because the mean of its divisors is an integer number (339455426).

Almost surely, 2^1917314723 is an apocalyptic number.

1917314723 is a deficient number, since it is larger than the sum of its proper divisors (119417833).

1917314723 is an equidigital number, since it uses as much as digits as its factorization.

1917314723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6634341 (or 6634324 counting only the distinct ones).

The product of its digits is 31752, while the sum is 38.

The square root of 1917314723 is about 43787.1524879159. The cubic root of 1917314723 is about 1242.3133028797.

The spelling of 1917314723 in words is "one billion, nine hundred seventeen million, three hundred fourteen thousand, seven hundred twenty-three".