8726616 has 72 divisors (see below), whose sum is σ = 24881220. Its totient is φ = 2865456.

The previous prime is 8726611. The next prime is 8726633. The reversal of 8726616 is 6166278.

It is a happy number.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

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

It is a super-2 number, since 2×8726616² = 152307653622912, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an Ulam number.

Its product of digits (24192) is a multiple of the sum of its prime divisors (72).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8726611) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 130215 + ... + 130281.

Almost surely, 2^8726616 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 8726616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12440610).

8726616 is an abundant number, since it is smaller than the sum of its proper divisors (16154604).

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

8726616 is an equidigital number, since it uses as much as digits as its factorization.

8726616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155 (or 72 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 8726616 is about 2954.0846297965. The cubic root of 8726616 is about 205.8805352509.

The spelling of 8726616 in words is "eight million, seven hundred twenty-six thousand, six hundred sixteen".