7882281 has 24 divisors (see below), whose sum is σ = 12557376. Its totient is φ = 4724640.

The previous prime is 7882267. The next prime is 7882289. The reversal of 7882281 is 1822887.

It is not a de Polignac number, because 7882281 - 2¹¹ = 7880233 is a prime.

It is a super-2 number, since 2×7882281² = 124260707525922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7882289) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9811 + ... + 10583.

It is an arithmetic number, because the mean of its divisors is an integer number (523224).

Almost surely, 2^7882281 is an apocalyptic number.

It is an amenable number.

7882281 is a deficient number, since it is larger than the sum of its proper divisors (4675095).

7882281 is a wasteful number, since it uses less digits than its factorization.

7882281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 893 (or 890 counting only the distinct ones).

The product of its digits is 14336, while the sum is 36.

The square root of 7882281 is about 2807.5400264288. The cubic root of 7882281 is about 199.0141568845.

It can be divided in two parts, 7 and 882281, that added together give a palindrome (882288).

The spelling of 7882281 in words is "seven million, eight hundred eighty-two thousand, two hundred eighty-one".