7271616 has 84 divisors (see below), whose sum is σ = 21215096. Its totient is φ = 2196480.

The previous prime is 7271609. The next prime is 7271617. The reversal of 7271616 is 6161727.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (7271617) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23076 + ... + 23388.

Almost surely, 2^7271616 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 7271616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10607548).

7271616 is an abundant number, since it is smaller than the sum of its proper divisors (13943480).

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

7271616 is a wasteful number, since it uses less digits than its factorization.

7271616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350 (or 329 counting only the distinct ones).

The product of its digits is 3528, while the sum is 30.

The square root of 7271616 is about 2696.5934065038. The cubic root of 7271616 is about 193.7359926051.

It can be divided in two parts, 7271 and 616, that added together give a palindrome (7887).

The spelling of 7271616 in words is "seven million, two hundred seventy-one thousand, six hundred sixteen".