1694045 has 8 divisors (see below), whose sum is σ = 2088024. Its totient is φ = 1318464.

The previous prime is 1694029. The next prime is 1694051. The reversal of 1694045 is 5404961.

It can be written as a sum of positive squares in 4 ways, for example, as 190969 + 1503076 = 437^2 + 1226^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1694045 - 2⁴ = 1694029 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1693999 and 1694017.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4394 + ... + 4763.

It is an arithmetic number, because the mean of its divisors is an integer number (261003).

2^1694045 is an apocalyptic number.

It is an amenable number.

1694045 is a deficient number, since it is larger than the sum of its proper divisors (393979).

1694045 is an equidigital number, since it uses as much as digits as its factorization.

1694045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9199.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 1694045 is about 1301.5548394132. The cubic root of 1694045 is about 119.2087994420.

The spelling of 1694045 in words is "one million, six hundred ninety-four thousand, forty-five".