123896916 has 144 divisors (see below), whose sum is σ = 377552448. Its totient is φ = 33753600.

The previous prime is 123896897. The next prime is 123896923. The reversal of 123896916 is 619698321.

It is a happy number.

It is a super-2 number, since 2×123896916² = 30700891588622112, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 210775 + ... + 211361.

It is an arithmetic number, because the mean of its divisors is an integer number (2621892).

Almost surely, 2^123896916 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 123896916, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (188776224).

123896916 is an abundant number, since it is smaller than the sum of its proper divisors (253655532).

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

123896916 is a wasteful number, since it uses less digits than its factorization.

123896916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 662 (or 657 counting only the distinct ones).

The product of its digits is 139968, while the sum is 45.

The square root of 123896916 is about 11130.8991550548. The cubic root of 123896916 is about 498.5248736175.

The spelling of 123896916 in words is "one hundred twenty-three million, eight hundred ninety-six thousand, nine hundred sixteen".