123623434 has 8 divisors (see below), whose sum is σ = 202292928. Its totient is φ = 56192460.

The previous prime is 123623431. The next prime is 123623447. The reversal of 123623434 is 434326321.

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

It is a super-3 number, since 3×123623434³ (a number of 25 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (123623431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2809602 + ... + 2809645.

It is an arithmetic number, because the mean of its divisors is an integer number (25286616).

Almost surely, 2^123623434 is an apocalyptic number.

123623434 is a deficient number, since it is larger than the sum of its proper divisors (78669494).

123623434 is a wasteful number, since it uses less digits than its factorization.

123623434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5619260.

The product of its digits is 10368, while the sum is 28.

The square root of 123623434 is about 11118.6075567042. The cubic root of 123623434 is about 498.1577995979.

Adding to 123623434 its reverse (434326321), we get a palindrome (557949755).

The spelling of 123623434 in words is "one hundred twenty-three million, six hundred twenty-three thousand, four hundred thirty-four".