7088281 has 4 divisors (see below), whose sum is σ = 7158564. Its totient is φ = 7018000.

The previous prime is 7088233. The next prime is 7088293. The reversal of 7088281 is 1828807.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5290000 + 1798281 = 2300^2 + 1341^2 .

It is a cyclic number.

It is not a de Polignac number, because 7088281 - 2¹⁵ = 7055513 is a prime.

It is a super-2 number, since 2×7088281² = 100487455069922, which contains 22 as substring.

It is a Duffinian number.

7088281 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (7088231) 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, 34990 + ... + 35191.

It is an arithmetic number, because the mean of its divisors is an integer number (1789641).

Almost surely, 2^7088281 is an apocalyptic number.

It is an amenable number.

7088281 is a deficient number, since it is larger than the sum of its proper divisors (70283).

7088281 is a wasteful number, since it uses less digits than its factorization.

7088281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70282.

The product of its (nonzero) digits is 7168, while the sum is 34.

The square root of 7088281 is about 2662.3825795704. The cubic root of 7088281 is about 192.0939300962.

The spelling of 7088281 in words is "seven million, eighty-eight thousand, two hundred eighty-one".