1620223027 has 2 divisors, whose sum is σ = 1620223028. Its totient is φ = 1620223026.

The previous prime is 1620222977. The next prime is 1620223037. The reversal of 1620223027 is 7203220261.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1620223027 - 2²⁷ = 1486005299 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1620222992 and 1620223010.

It is not a weakly prime, because it can be changed into another prime (1620223037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 810111513 + 810111514.

It is an arithmetic number, because the mean of its divisors is an integer number (810111514).

Almost surely, 2^1620223027 is an apocalyptic number.

1620223027 is a deficient number, since it is larger than the sum of its proper divisors (1).

1620223027 is an equidigital number, since it uses as much as digits as its factorization.

1620223027 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 1620223027 is about 40251.9940748281. The cubic root of 1620223027 is about 1174.5141862470.

Adding to 1620223027 its reverse (7203220261), we get a palindrome (8823443288).

The spelling of 1620223027 in words is "one billion, six hundred twenty million, two hundred twenty-three thousand, twenty-seven".