7288261 has 4 divisors (see below), whose sum is σ = 7360524. Its totient is φ = 7216000.

The previous prime is 7288231. The next prime is 7288271. The reversal of 7288261 is 1628827.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1628827 = 101 ⋅16127.

It can be written as a sum of positive squares in 2 ways, for example, as 6791236 + 497025 = 2606^2 + 705^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7288261 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7288231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35980 + ... + 36181.

It is an arithmetic number, because the mean of its divisors is an integer number (1840131).

Almost surely, 2^7288261 is an apocalyptic number.

It is an amenable number.

7288261 is a deficient number, since it is larger than the sum of its proper divisors (72263).

7288261 is a wasteful number, since it uses less digits than its factorization.

7288261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72262.

The product of its digits is 10752, while the sum is 34.

The square root of 7288261 is about 2699.6779437555. The cubic root of 7288261 is about 193.8837029264.

It can be divided in two parts, 728826 and 1, that added together give a palindrome (728827).

The spelling of 7288261 in words is "seven million, two hundred eighty-eight thousand, two hundred sixty-one".