8129016 has 72 divisors (see below), whose sum is σ = 25360920. Its totient is φ = 2304288.

The previous prime is 8128969. The next prime is 8129027. The reversal of 8129016 is 6109218.

It is a tau number, because it is divible by the number of its divisors (72).

It is a super-2 number, since 2×8129016² = 132161802256512, which contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 63945 + ... + 64071.

It is an arithmetic number, because the mean of its divisors is an integer number (352235).

Almost surely, 2^8129016 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 8129016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12680460).

8129016 is an abundant number, since it is smaller than the sum of its proper divisors (17231904).

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

8129016 is a wasteful number, since it uses less digits than its factorization.

8129016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273 (or 139 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

The square root of 8129016 is about 2851.1429287217. The cubic root of 8129016 is about 201.0694050063.

The spelling of 8129016 in words is "eight million, one hundred twenty-nine thousand, sixteen".