1604227 has 8 divisors (see below), whose sum is σ = 1762560. Its totient is φ = 1453320.

The previous prime is 1604191. The next prime is 1604231. The reversal of 1604227 is 7224061.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1604227 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1604198 and 1604207.

It is not an unprimeable number, because it can be changed into a prime (1604237) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1399 + ... + 2272.

It is an arithmetic number, because the mean of its divisors is an integer number (220320).

2^1604227 is an apocalyptic number.

1604227 is a deficient number, since it is larger than the sum of its proper divisors (158333).

1604227 is a wasteful number, since it uses less digits than its factorization.

1604227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3713.

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 1604227 is about 1266.5808304250. The cubic root of 1604227 is about 117.0636174832.

Adding to 1604227 its reverse (7224061), we get a palindrome (8828288).

The spelling of 1604227 in words is "one million, six hundred four thousand, two hundred twenty-seven".