1654223 has 2 divisors, whose sum is σ = 1654224. Its totient is φ = 1654222.

The previous prime is 1654217. The next prime is 1654231. The reversal of 1654223 is 3224561.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1654223 - 2¹⁶ = 1588687 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1654123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 827111 + 827112.

It is an arithmetic number, because the mean of its divisors is an integer number (827112).

2^1654223 is an apocalyptic number.

1654223 is a deficient number, since it is larger than the sum of its proper divisors (1).

1654223 is an equidigital number, since it uses as much as digits as its factorization.

1654223 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1440, while the sum is 23.

The square root of 1654223 is about 1286.1660079477. The cubic root of 1654223 is about 118.2673007686.

Adding to 1654223 its reverse (3224561), we get a palindrome (4878784).

The spelling of 1654223 in words is "one million, six hundred fifty-four thousand, two hundred twenty-three".