1712817664 has 40 divisors (see below), whose sum is σ = 3448549368. Its totient is φ = 849838080.

The previous prime is 1712817649. The next prime is 1712817671. The reversal of 1712817664 is 4667182171.

It is a super-2 number, since 2×1712817664² = 5867488700220833792, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1712817664.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54304 + ... + 79840.

Almost surely, 2^1712817664 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1712817664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1724274684).

1712817664 is an abundant number, since it is smaller than the sum of its proper divisors (1735731704).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1712817664 is an equidigital number, since it uses as much as digits as its factorization.

1712817664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25686 (or 25670 counting only the distinct ones).

The product of its digits is 112896, while the sum is 43.

The square root of 1712817664 is about 41386.2013719549. The cubic root of 1712817664 is about 1196.4752271544.

It can be divided in two parts, 1712817 and 664, that added together give a square (1713481 = 1309²).

The spelling of 1712817664 in words is "one billion, seven hundred twelve million, eight hundred seventeen thousand, six hundred sixty-four".