1675813 has 4 divisors (see below), whose sum is σ = 1699488. Its totient is φ = 1652140.

The previous prime is 1675801. The next prime is 1675831. The reversal of 1675813 is 3185761.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3185761 = 613 ⋅5197.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1675813 is a prime.

It is a Duffinian number.

1675813 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1675873) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11731 + ... + 11872.

It is an arithmetic number, because the mean of its divisors is an integer number (424872).

2^1675813 is an apocalyptic number.

It is an amenable number.

1675813 is a deficient number, since it is larger than the sum of its proper divisors (23675).

1675813 is an equidigital number, since it uses as much as digits as its factorization.

1675813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23674.

The product of its digits is 5040, while the sum is 31.

The square root of 1675813 is about 1294.5319617530. The cubic root of 1675813 is about 118.7795981623.

The spelling of 1675813 in words is "one million, six hundred seventy-five thousand, eight hundred thirteen".