1673856669 has 16 divisors (see below), whose sum is σ = 2364249600. Its totient is φ = 1049748480.

The previous prime is 1673856659. The next prime is 1673856673. The reversal of 1673856669 is 9666583761.

It is not a de Polignac number, because 1673856669 - 2⁹ = 1673856157 is a prime.

It is a super-2 number, since 2×1673856669² = 5603592296711551122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1673856659) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 115509 + ... + 129189.

It is an arithmetic number, because the mean of its divisors is an integer number (147765600).

Almost surely, 2^1673856669 is an apocalyptic number.

It is an amenable number.

1673856669 is a deficient number, since it is larger than the sum of its proper divisors (690392931).

1673856669 is a wasteful number, since it uses less digits than its factorization.

1673856669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16100.

The product of its digits is 9797760, while the sum is 57.

The square root of 1673856669 is about 40912.7934636588. The cubic root of 1673856669 is about 1187.3335937313. Note that the first 3 decimals are identical.

The spelling of 1673856669 in words is "one billion, six hundred seventy-three million, eight hundred fifty-six thousand, six hundred sixty-nine".