1630223 has 8 divisors (see below), whose sum is σ = 1870848. Its totient is φ = 1391544.

The previous prime is 1630199. The next prime is 1630243. The reversal of 1630223 is 3220361.

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

It is not a de Polignac number, because 1630223 - 2⁶ = 1630159 is a prime.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1630243) 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, 2990 + ... + 3492.

It is an arithmetic number, because the mean of its divisors is an integer number (233856).

2^1630223 is an apocalyptic number.

1630223 is a deficient number, since it is larger than the sum of its proper divisors (240625).

1630223 is an equidigital number, since it uses as much as digits as its factorization.

1630223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 973.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 1630223 is about 1276.8018640337. The cubic root of 1630223 is about 117.6925588663.

Adding to 1630223 its reverse (3220361), we get a palindrome (4850584).

The spelling of 1630223 in words is "one million, six hundred thirty thousand, two hundred twenty-three".