9896723 has 4 divisors (see below), whose sum is σ = 10164240. Its totient is φ = 9629208.

The previous prime is 9896717. The next prime is 9896741. The reversal of 9896723 is 3276989.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 9896723 - 2⁶ = 9896659 is a prime.

It is a super-2 number, since 2×9896723² = 195890252277458, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9896713) 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, 133703 + ... + 133776.

It is an arithmetic number, because the mean of its divisors is an integer number (2541060).

Almost surely, 2^9896723 is an apocalyptic number.

9896723 is a deficient number, since it is larger than the sum of its proper divisors (267517).

9896723 is a wasteful number, since it uses less digits than its factorization.

9896723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267516.

The product of its digits is 163296, while the sum is 44.

The square root of 9896723 is about 3145.9057519258. The cubic root of 9896723 is about 214.6992224692.

The spelling of 9896723 in words is "nine million, eight hundred ninety-six thousand, seven hundred twenty-three".