8072281 has 4 divisors (see below), whose sum is σ = 9225472. Its totient is φ = 6919092.

The previous prime is 8072269. The next prime is 8072291. The reversal of 8072281 is 1822708.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 8072281 - 2¹⁹ = 7547993 is a prime.

It is a super-2 number, since 2×8072281² = 130323441085922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8072221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 576585 + ... + 576598.

It is an arithmetic number, because the mean of its divisors is an integer number (2306368).

Almost surely, 2^8072281 is an apocalyptic number.

It is an amenable number.

8072281 is a deficient number, since it is larger than the sum of its proper divisors (1153191).

8072281 is a wasteful number, since it uses less digits than its factorization.

8072281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1153190.

The product of its (nonzero) digits is 1792, while the sum is 28.

The square root of 8072281 is about 2841.1759889173. The cubic root of 8072281 is about 200.6005366405.

Adding to 8072281 its reverse (1822708), we get a palindrome (9894989).

It can be divided in two parts, 80 and 72281, that added together give a square (72361 = 269²).

The spelling of 8072281 in words is "eight million, seventy-two thousand, two hundred eighty-one".