2017670745 has 16 divisors (see below), whose sum is σ = 3368633472. Its totient is φ = 1029304320.

The previous prime is 2017670741. The next prime is 2017670747. The reversal of 2017670745 is 5470767102.

It is not a de Polignac number, because 2017670745 - 2² = 2017670741 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2017670741) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2923816 + ... + 2924505.

It is an arithmetic number, because the mean of its divisors is an integer number (210539592).

Almost surely, 2^2017670745 is an apocalyptic number.

It is an amenable number.

2017670745 is a deficient number, since it is larger than the sum of its proper divisors (1350962727).

2017670745 is a wasteful number, since it uses less digits than its factorization.

2017670745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5848352.

The product of its (nonzero) digits is 82320, while the sum is 39.

The square root of 2017670745 is about 44918.4900124659. The cubic root of 2017670745 is about 1263.6207989066.

The spelling of 2017670745 in words is "two billion, seventeen million, six hundred seventy thousand, seven hundred forty-five".