673355081 has 4 divisors (see below), whose sum is σ = 769548672. Its totient is φ = 577161492.

The previous prime is 673355071. The next prime is 673355083. The reversal of 673355081 is 180553376.

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 a cyclic number.

It is not a de Polignac number, because 673355081 - 2²² = 669160777 is a prime.

It is a super-2 number, since 2×673355081² = 906814130217033122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (673355083) 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, 48096785 + ... + 48096798.

It is an arithmetic number, because the mean of its divisors is an integer number (192387168).

Almost surely, 2^673355081 is an apocalyptic number.

It is an amenable number.

673355081 is a deficient number, since it is larger than the sum of its proper divisors (96193591).

673355081 is an equidigital number, since it uses as much as digits as its factorization.

673355081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96193590.

The product of its (nonzero) digits is 75600, while the sum is 38.

The square root of 673355081 is about 25949.0863230288. The cubic root of 673355081 is about 876.4921829991.

The spelling of 673355081 in words is "six hundred seventy-three million, three hundred fifty-five thousand, eighty-one".