1745664 has 36 divisors (see below), whose sum is σ = 4648056. Its totient is φ = 581632.

The previous prime is 1745647. The next prime is 1745669. The reversal of 1745664 is 4665471.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (1745669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 369 + ... + 1904.

2^1745664 is an apocalyptic number.

It is an amenable number.

1745664 is an abundant number, since it is smaller than the sum of its proper divisors (2902392).

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

1745664 is an equidigital number, since it uses as much as digits as its factorization.

1745664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2292 (or 2278 counting only the distinct ones).

The product of its digits is 20160, while the sum is 33.

The square root of 1745664 is about 1321.2357851648. The cubic root of 1745664 is about 120.4075034966.

The spelling of 1745664 in words is "one million, seven hundred forty-five thousand, six hundred sixty-four".