1230623 has 4 divisors (see below), whose sum is σ = 1238160. Its totient is φ = 1223088.

The previous prime is 1230599. The next prime is 1230629. The reversal of 1230623 is 3260321.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1230623 - 2⁸ = 1230367 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1230629) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3518 + ... + 3851.

It is an arithmetic number, because the mean of its divisors is an integer number (309540).

2^1230623 is an apocalyptic number.

1230623 is a deficient number, since it is larger than the sum of its proper divisors (7537).

1230623 is an equidigital number, since it uses as much as digits as its factorization.

1230623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7536.

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

The square root of 1230623 is about 1109.3344851757. The cubic root of 1230623 is about 107.1622135611.

Adding to 1230623 its reverse (3260321), we get a palindrome (4490944).

The spelling of 1230623 in words is "one million, two hundred thirty thousand, six hundred twenty-three".