123716836 has 12 divisors (see below), whose sum is σ = 216696060. Its totient is φ = 61803680.

The previous prime is 123716833. The next prime is 123716843. The reversal of 123716836 is 638617321.

It can be written as a sum of positive squares in 2 ways, for example, as 108035236 + 15681600 = 10394^2 + 3960^2 .

It is a junction number, because it is equal to n+sod(n) for n = 123716795 and 123716804.

It is not an unprimeable number, because it can be changed into a prime (123716833) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8371 + ... + 17818.

It is an arithmetic number, because the mean of its divisors is an integer number (18058005).

Almost surely, 2^123716836 is an apocalyptic number.

It is an amenable number.

123716836 is a deficient number, since it is larger than the sum of its proper divisors (92979224).

123716836 is a wasteful number, since it uses less digits than its factorization.

123716836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27374 (or 27372 counting only the distinct ones).

The product of its digits is 36288, while the sum is 37.

The square root of 123716836 is about 11122.8070198129. The cubic root of 123716836 is about 498.2832267927.

The spelling of 123716836 in words is "one hundred twenty-three million, seven hundred sixteen thousand, eight hundred thirty-six".