123896917 has 8 divisors (see below), whose sum is σ = 127706112. Its totient is φ = 120145200.

The previous prime is 123896897. The next prime is 123896923. The reversal of 123896917 is 719698321.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 123896917 - 2¹⁵ = 123864149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123896947) 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, 9973 + ... + 18634.

It is an arithmetic number, because the mean of its divisors is an integer number (15963264).

Almost surely, 2^123896917 is an apocalyptic number.

It is an amenable number.

123896917 is a deficient number, since it is larger than the sum of its proper divisors (3809195).

123896917 is an equidigital number, since it uses as much as digits as its factorization.

123896917 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28739.

The product of its digits is 163296, while the sum is 46.

The square root of 123896917 is about 11130.8991999748. The cubic root of 123896917 is about 498.5248749587.

It can be divided in two parts, 12389 and 6917, that added together give a triangular number (19306 = T₁₉₆).

The spelling of 123896917 in words is "one hundred twenty-three million, eight hundred ninety-six thousand, nine hundred seventeen".