123406704 has 60 divisors (see below), whose sum is σ = 346528416. Its totient is φ = 40997376.

The previous prime is 123406693. The next prime is 123406711. The reversal of 123406704 is 407604321.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 47257 + ... + 49799.

Almost surely, 2^123406704 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 123406704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (173264208).

123406704 is an abundant number, since it is smaller than the sum of its proper divisors (223121712).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123406704 is a wasteful number, since it uses less digits than its factorization.

123406704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2894 (or 2885 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 123406704 is about 11108.8570069112. The cubic root of 123406704 is about 497.8665147630.

It can be divided in two parts, 12340 and 6704, that added together give a square (19044 = 138²).

The spelling of 123406704 in words is "one hundred twenty-three million, four hundred six thousand, seven hundred four".