673751121 has 16 divisors (see below), whose sum is σ = 939177600. Its totient is φ = 428820480.

The previous prime is 673751107. The next prime is 673751137. The reversal of 673751121 is 121157376.

It is not a de Polignac number, because 673751121 - 2¹¹ = 673749073 is a prime.

It is not an unprimeable number, because it can be changed into a prime (673751101) 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, 28305 + ... + 46353.

It is an arithmetic number, because the mean of its divisors is an integer number (58698600).

Almost surely, 2^673751121 is an apocalyptic number.

It is an amenable number.

673751121 is a deficient number, since it is larger than the sum of its proper divisors (265426479).

673751121 is a wasteful number, since it uses less digits than its factorization.

673751121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18616.

The product of its digits is 8820, while the sum is 33.

The square root of 673751121 is about 25956.7162984843. The cubic root of 673751121 is about 876.6639883071.

The spelling of 673751121 in words is "six hundred seventy-three million, seven hundred fifty-one thousand, one hundred twenty-one".