12319623 has 6 divisors (see below), whose sum is σ = 17795024. Its totient is φ = 8213076.

The previous prime is 12319609. The next prime is 12319627. The reversal of 12319623 is 32691321.

12319623 is a `hidden beast` number, since 1 + 2 + 31 + 9 + 623 = 666.

It is not a de Polignac number, because 12319623 - 2⁵ = 12319591 is a prime.

It is a super-2 number, since 2×12319623² = 303546221724258, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12319627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 684415 + ... + 684432.

Almost surely, 2^12319623 is an apocalyptic number.

12319623 is a deficient number, since it is larger than the sum of its proper divisors (5475401).

12319623 is a wasteful number, since it uses less digits than its factorization.

12319623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1368853 (or 1368850 counting only the distinct ones).

The product of its digits is 1944, while the sum is 27.

The square root of 12319623 is about 3509.9320506243. The cubic root of 12319623 is about 230.9577141916.

The spelling of 12319623 in words is "twelve million, three hundred nineteen thousand, six hundred twenty-three".