123906706 has 16 divisors (see below), whose sum is σ = 231721920. Its totient is φ = 48275280.

The previous prime is 123906691. The next prime is 123906707. The reversal of 123906706 is 607609321.

It is not an unprimeable number, because it can be changed into a prime (123906707) 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 7 ways as a sum of consecutive naturals, for example, 402141 + ... + 402448.

It is an arithmetic number, because the mean of its divisors is an integer number (14482620).

Almost surely, 2^123906706 is an apocalyptic number.

123906706 is a deficient number, since it is larger than the sum of its proper divisors (107815214).

123906706 is a wasteful number, since it uses less digits than its factorization.

123906706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 804609.

The product of its (nonzero) digits is 13608, while the sum is 34.

The square root of 123906706 is about 11131.3389131766. The cubic root of 123906706 is about 498.5380039684.

The spelling of 123906706 in words is "one hundred twenty-three million, nine hundred six thousand, seven hundred six".