123966996 has 48 divisors (see below), whose sum is σ = 302279040. Its totient is φ = 39491200.

The previous prime is 123966991. The next prime is 123967007. The reversal of 123966996 is 699669321.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123966991) 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 15 ways as a sum of consecutive naturals, for example, 33385 + ... + 36911.

It is an arithmetic number, because the mean of its divisors is an integer number (6297480).

Almost surely, 2^123966996 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 123966996, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (151139520).

123966996 is an abundant number, since it is smaller than the sum of its proper divisors (178312044).

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

123966996 is a wasteful number, since it uses less digits than its factorization.

123966996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3664 (or 3662 counting only the distinct ones).

The product of its digits is 944784, while the sum is 51.

The square root of 123966996 is about 11134.0467036922. The cubic root of 123966996 is about 498.6188496939.

The spelling of 123966996 in words is "one hundred twenty-three million, nine hundred sixty-six thousand, nine hundred ninety-six".