123916866 has 16 divisors (see below), whose sum is σ = 248644704. Its totient is φ = 41170464.

The previous prime is 123916861. The next prime is 123916873. The reversal of 123916866 is 668619321.

It is not an unprimeable number, because it can be changed into a prime (123916861) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31795 + ... + 35478.

It is an arithmetic number, because the mean of its divisors is an integer number (15540294).

Almost surely, 2^123916866 is an apocalyptic number.

123916866 is an abundant number, since it is smaller than the sum of its proper divisors (124727838).

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

123916866 is a wasteful number, since it uses less digits than its factorization.

123916866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67585.

The product of its digits is 93312, while the sum is 42.

The square root of 123916866 is about 11131.7952730007. The cubic root of 123916866 is about 498.5516298322.

The spelling of 123916866 in words is "one hundred twenty-three million, nine hundred sixteen thousand, eight hundred sixty-six".