1672626673 has 2 divisors, whose sum is σ = 1672626674. Its totient is φ = 1672626672.

The previous prime is 1672626643. The next prime is 1672626679. The reversal of 1672626673 is 3766262761.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1591770609 + 80856064 = 39897^2 + 8992^2 .

It is an emirp because it is prime and its reverse (3766262761) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1672626673 is a prime.

It is not a weakly prime, because it can be changed into another prime (1672626679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 836313336 + 836313337.

It is an arithmetic number, because the mean of its divisors is an integer number (836313337).

Almost surely, 2^1672626673 is an apocalyptic number.

It is an amenable number.

1672626673 is a deficient number, since it is larger than the sum of its proper divisors (1).

1672626673 is an equidigital number, since it uses as much as digits as its factorization.

1672626673 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 762048, while the sum is 46.

The square root of 1672626673 is about 40897.7587772240. The cubic root of 1672626673 is about 1187.0426939862.

The spelling of 1672626673 in words is "one billion, six hundred seventy-two million, six hundred twenty-six thousand, six hundred seventy-three".