8661696 has 56 divisors (see below), whose sum is σ = 23134320. Its totient is φ = 2860032.

The previous prime is 8661689. The next prime is 8661703. The reversal of 8661696 is 6961668.

It is an interprime number because it is at equal distance from previous prime (8661689) and next prime (8661703).

It is an Ulam number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37710 + ... + 37938.

Almost surely, 2^8661696 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 8661696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11567160).

8661696 is an abundant number, since it is smaller than the sum of its proper divisors (14472624).

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

8661696 is a wasteful number, since it uses less digits than its factorization.

8661696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 441 (or 431 counting only the distinct ones).

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

The square root of 8661696 is about 2943.0759419356. The cubic root of 8661696 is about 205.3687276180.

The spelling of 8661696 in words is "eight million, six hundred sixty-one thousand, six hundred ninety-six".