1604234227 has 2 divisors, whose sum is σ = 1604234228. Its totient is φ = 1604234226.

The previous prime is 1604234213. The next prime is 1604234273. The reversal of 1604234227 is 7224324061.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1604234227 - 2²³ = 1595845619 is a prime.

It is not a weakly prime, because it can be changed into another prime (1604234327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 802117113 + 802117114.

It is an arithmetic number, because the mean of its divisors is an integer number (802117114).

Almost surely, 2^1604234227 is an apocalyptic number.

1604234227 is a deficient number, since it is larger than the sum of its proper divisors (1).

1604234227 is an equidigital number, since it uses as much as digits as its factorization.

1604234227 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16128, while the sum is 31.

The square root of 1604234227 is about 40052.8928668080. The cubic root of 1604234227 is about 1170.6379327239.

Adding to 1604234227 its reverse (7224324061), we get a palindrome (8828558288).

The spelling of 1604234227 in words is "one billion, six hundred four million, two hundred thirty-four thousand, two hundred twenty-seven".