1626006673 has 4 divisors (see below), whose sum is σ = 1628017380. Its totient is φ = 1623995968.

The previous prime is 1626006661. The next prime is 1626006709. The reversal of 1626006673 is 3766006261.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1266790464 + 359216209 = 35592^2 + 18953^2 .

It is a cyclic number.

It is not a de Polignac number, because 1626006673 - 2²⁵ = 1592452241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1626006623) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1004140 + ... + 1005757.

It is an arithmetic number, because the mean of its divisors is an integer number (407004345).

Almost surely, 2^1626006673 is an apocalyptic number.

It is an amenable number.

1626006673 is a deficient number, since it is larger than the sum of its proper divisors (2010707).

1626006673 is an equidigital number, since it uses as much as digits as its factorization.

1626006673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2010706.

The product of its (nonzero) digits is 54432, while the sum is 37.

The square root of 1626006673 is about 40323.7730501500. The cubic root of 1626006673 is about 1175.9100655556.

The spelling of 1626006673 in words is "one billion, six hundred twenty-six million, six thousand, six hundred seventy-three".