1673939 has 4 divisors (see below), whose sum is σ = 1772424. Its totient is φ = 1575456.

The previous prime is 1673933. The next prime is 1673941. The reversal of 1673939 is 9393761.

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

It is a cyclic number.

It is not a de Polignac number, because 1673939 - 2⁴ = 1673923 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1673933) 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, 49217 + ... + 49250.

It is an arithmetic number, because the mean of its divisors is an integer number (443106).

2^1673939 is an apocalyptic number.

1673939 is a deficient number, since it is larger than the sum of its proper divisors (98485).

1673939 is an equidigital number, since it uses as much as digits as its factorization.

1673939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98484.

The product of its digits is 30618, while the sum is 38.

The square root of 1673939 is about 1293.8079455622. The cubic root of 1673939 is about 118.7353060304.

The spelling of 1673939 in words is "one million, six hundred seventy-three thousand, nine hundred thirty-nine".