673901081 has 16 divisors (see below), whose sum is σ = 805469184. Its totient is φ = 551270544.

The previous prime is 673901027. The next prime is 673901113. The reversal of 673901081 is 180109376.

It is a cyclic number.

It is not a de Polignac number, because 673901081 - 2²² = 669706777 is a prime.

It is a super-2 number, since 2×673901081² = 908285333945937122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (673901581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70706 + ... + 79668.

It is an arithmetic number, because the mean of its divisors is an integer number (50341824).

Almost surely, 2^673901081 is an apocalyptic number.

It is an amenable number.

673901081 is a deficient number, since it is larger than the sum of its proper divisors (131568103).

673901081 is a wasteful number, since it uses less digits than its factorization.

673901081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9460.

The product of its (nonzero) digits is 9072, while the sum is 35.

The square root of 673901081 is about 25959.6047928315. The cubic root of 673901081 is about 876.7290245770.

The spelling of 673901081 in words is "six hundred seventy-three million, nine hundred one thousand, eighty-one".