1673606173 has 2 divisors, whose sum is σ = 1673606174. Its totient is φ = 1673606172.

The previous prime is 1673606167. The next prime is 1673606189. The reversal of 1673606173 is 3716063761.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1357406649 + 316199524 = 36843^2 + 17782^2 .

It is a cyclic number.

It is not a de Polignac number, because 1673606173 - 2²⁵ = 1640051741 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1673606573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 836803086 + 836803087.

It is an arithmetic number, because the mean of its divisors is an integer number (836803087).

Almost surely, 2^1673606173 is an apocalyptic number.

It is an amenable number.

1673606173 is a deficient number, since it is larger than the sum of its proper divisors (1).

1673606173 is an equidigital number, since it uses as much as digits as its factorization.

1673606173 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 95256, while the sum is 40.

The square root of 1673606173 is about 40909.7320084109. The cubic root of 1673606173 is about 1187.2743618270.

The spelling of 1673606173 in words is "one billion, six hundred seventy-three million, six hundred six thousand, one hundred seventy-three".