1628238373 has 2 divisors, whose sum is σ = 1628238374. Its totient is φ = 1628238372.

The previous prime is 1628238341. The next prime is 1628238377. The reversal of 1628238373 is 3738328261.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1436637409 + 191600964 = 37903^2 + 13842^2 .

It is a cyclic number.

It is not a de Polignac number, because 1628238373 - 2⁵ = 1628238341 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1628238377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 814119186 + 814119187.

It is an arithmetic number, because the mean of its divisors is an integer number (814119187).

Almost surely, 2^1628238373 is an apocalyptic number.

It is an amenable number.

1628238373 is a deficient number, since it is larger than the sum of its proper divisors (1).

1628238373 is an equidigital number, since it uses as much as digits as its factorization.

1628238373 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 290304, while the sum is 43.

The square root of 1628238373 is about 40351.4358232765. The cubic root of 1628238373 is about 1176.4477998796.

The spelling of 1628238373 in words is "one billion, six hundred twenty-eight million, two hundred thirty-eight thousand, three hundred seventy-three".