8121696 has 48 divisors (see below), whose sum is σ = 23260608. Its totient is φ = 2460800.

The previous prime is 8121689. The next prime is 8121697. The reversal of 8121696 is 6961218.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (33).

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

It is a nialpdrome in base 15.

It is a zygodrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8121697) 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, 2790 + ... + 4901.

It is an arithmetic number, because the mean of its divisors is an integer number (484596).

Almost surely, 2^8121696 is an apocalyptic number.

It is an amenable number.

8121696 is an abundant number, since it is smaller than the sum of its proper divisors (15138912).

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

8121696 is a wasteful number, since it uses less digits than its factorization.

8121696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7715 (or 7707 counting only the distinct ones).

The product of its digits is 5184, while the sum is 33.

The square root of 8121696 is about 2849.8589438777. The cubic root of 8121696 is about 201.0090340238.

It can be divided in two parts, 812169 and 6, that added together give a triangular number (812175 = T₁₂₇₄).

The spelling of 8121696 in words is "eight million, one hundred twenty-one thousand, six hundred ninety-six".