1764223 has 2 divisors, whose sum is σ = 1764224. Its totient is φ = 1764222.

The previous prime is 1764221. The next prime is 1764227. The reversal of 1764223 is 3224671.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1764223 - 2¹ = 1764221 is a prime.

It is a super-2 number, since 2×1764223² = 6224965587458, which contains 22 as substring.

Together with 1764221, it forms a pair of twin primes.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1764221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 882111 + 882112.

It is an arithmetic number, because the mean of its divisors is an integer number (882112).

2^1764223 is an apocalyptic number.

1764223 is a deficient number, since it is larger than the sum of its proper divisors (1).

1764223 is an equidigital number, since it uses as much as digits as its factorization.

1764223 is an evil number, because the sum of its binary digits is even.

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

The square root of 1764223 is about 1328.2405655603. The cubic root of 1764223 is about 120.8327037092.

Adding to 1764223 its reverse (3224671), we get a palindrome (4988894).

The spelling of 1764223 in words is "one million, seven hundred sixty-four thousand, two hundred twenty-three".