1317884705 has 16 divisors (see below), whose sum is σ = 1655472384. Its totient is φ = 1005259200.

The previous prime is 1317884657. The next prime is 1317884713. The reversal of 1317884705 is 5074887131.

It is not a de Polignac number, because 1317884705 - 2¹² = 1317880609 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18380 + ... + 54530.

It is an arithmetic number, because the mean of its divisors is an integer number (103467024).

Almost surely, 2^1317884705 is an apocalyptic number.

It is an amenable number.

1317884705 is a deficient number, since it is larger than the sum of its proper divisors (337587679).

1317884705 is a wasteful number, since it uses less digits than its factorization.

1317884705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36496.

The product of its (nonzero) digits is 188160, while the sum is 44.

The square root of 1317884705 is about 36302.6817879892. The cubic root of 1317884705 is about 1096.3750384270.

The spelling of 1317884705 in words is "one billion, three hundred seventeen million, eight hundred eighty-four thousand, seven hundred five".