1673013 has 4 divisors (see below), whose sum is σ = 2230688. Its totient is φ = 1115340.

The previous prime is 1673011. The next prime is 1673017. The reversal of 1673013 is 3103761.

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.

It is not a de Polignac number, because 1673013 - 2¹ = 1673011 is a prime.

It is a D-number.

It is a Duffinian number.

1673013 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1673011) by changing a digit.

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, 278833 + ... + 278838.

It is an arithmetic number, because the mean of its divisors is an integer number (557672).

2^1673013 is an apocalyptic number.

It is an amenable number.

1673013 is a deficient number, since it is larger than the sum of its proper divisors (557675).

1673013 is an equidigital number, since it uses as much as digits as its factorization.

1673013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 557674.

The product of its (nonzero) digits is 378, while the sum is 21.

The square root of 1673013 is about 1293.4500376899. The cubic root of 1673013 is about 118.7134077467.

Adding to 1673013 its reverse (3103761), we get a palindrome (4776774).

The spelling of 1673013 in words is "one million, six hundred seventy-three thousand, thirteen".