1223089623 has 24 divisors (see below), whose sum is σ = 2049211008. Its totient is φ = 688474512.

The previous prime is 1223089597. The next prime is 1223089627. The reversal of 1223089623 is 3269803221.

1223089623 is a `hidden beast` number, since 1 + 2 + 23 + 0 + 8 + 9 + 623 = 666.

It is not a de Polignac number, because 1223089623 - 2⁹ = 1223089111 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223089627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 140661 + ... + 149102.

It is an arithmetic number, because the mean of its divisors is an integer number (85383792).

Almost surely, 2^1223089623 is an apocalyptic number.

1223089623 is a deficient number, since it is larger than the sum of its proper divisors (826121385).

1223089623 is a wasteful number, since it uses less digits than its factorization.

1223089623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289843 (or 289840 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 1223089623 is about 34972.6982516362. The cubic root of 1223089623 is about 1069.4309790768.

The spelling of 1223089623 in words is "one billion, two hundred twenty-three million, eighty-nine thousand, six hundred twenty-three".