1673340685 has 8 divisors (see below), whose sum is σ = 2126127096. Its totient is φ = 1259927040.

The previous prime is 1673340679. The next prime is 1673340703. The reversal of 1673340685 is 5860433761.

It can be written as a sum of positive squares in 4 ways, for example, as 23843689 + 1649496996 = 4883^2 + 40614^2 .

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

It is not a de Polignac number, because 1673340685 - 2²⁷ = 1539122957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9843096 + ... + 9843265.

It is an arithmetic number, because the mean of its divisors is an integer number (265765887).

Almost surely, 2^1673340685 is an apocalyptic number.

It is an amenable number.

1673340685 is a deficient number, since it is larger than the sum of its proper divisors (452786411).

1673340685 is a wasteful number, since it uses less digits than its factorization.

1673340685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19686383.

The product of its (nonzero) digits is 362880, while the sum is 43.

The square root of 1673340685 is about 40906.4870772351. The cubic root of 1673340685 is about 1187.2115784853.

The spelling of 1673340685 in words is "one billion, six hundred seventy-three million, three hundred forty thousand, six hundred eighty-five".