1675385 has 4 divisors (see below), whose sum is σ = 2010468. Its totient is φ = 1340304.

The previous prime is 1675379. The next prime is 1675393. The reversal of 1675385 is 5835761.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 273529 + 1401856 = 523^2 + 1184^2 .

It is a cyclic number.

It is not a de Polignac number, because 1675385 - 2⁴ = 1675369 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 167534 + ... + 167543.

It is an arithmetic number, because the mean of its divisors is an integer number (502617).

2^1675385 is an apocalyptic number.

It is an amenable number.

1675385 is a deficient number, since it is larger than the sum of its proper divisors (335083).

1675385 is an equidigital number, since it uses as much as digits as its factorization.

1675385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335082.

The product of its digits is 25200, while the sum is 35.

The square root of 1675385 is about 1294.3666404848. The cubic root of 1675385 is about 118.7694852605.

The spelling of 1675385 in words is "one million, six hundred seventy-five thousand, three hundred eighty-five".