1628227 has 2 divisors, whose sum is σ = 1628228. Its totient is φ = 1628226.

The previous prime is 1628203. The next prime is 1628261. The reversal of 1628227 is 7228261.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1628227 is a prime.

It is a super-2 number, since 2×1628227² = 5302246327058, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1628195 and 1628204.

It is not a weakly prime, because it can be changed into another prime (1625227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 814113 + 814114.

It is an arithmetic number, because the mean of its divisors is an integer number (814114).

2^1628227 is an apocalyptic number.

1628227 is a deficient number, since it is larger than the sum of its proper divisors (1).

1628227 is an equidigital number, since it uses as much as digits as its factorization.

1628227 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2688, while the sum is 28.

The square root of 1628227 is about 1276.0199841695. The cubic root of 1628227 is about 117.6445060770.

The spelling of 1628227 in words is "one million, six hundred twenty-eight thousand, two hundred twenty-seven".