8349281 has 4 divisors (see below), whose sum is σ = 8552964. Its totient is φ = 8145600.

The previous prime is 8349277. The next prime is 8349301. The reversal of 8349281 is 1829438.

It is a happy number.

8349281 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 2512225 + 5837056 = 1585^2 + 2416^2 .

It is a cyclic number.

It is not a de Polignac number, because 8349281 - 2² = 8349277 is a prime.

It is a super-2 number, since 2×8349281² = 139420986433922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8349241) 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, 101780 + ... + 101861.

It is an arithmetic number, because the mean of its divisors is an integer number (2138241).

Almost surely, 2^8349281 is an apocalyptic number.

It is an amenable number.

8349281 is a deficient number, since it is larger than the sum of its proper divisors (203683).

8349281 is a wasteful number, since it uses less digits than its factorization.

8349281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203682.

The product of its digits is 13824, while the sum is 35.

The square root of 8349281 is about 2889.5122425766. The cubic root of 8349281 is about 202.8693133468.

The spelling of 8349281 in words is "eight million, three hundred forty-nine thousand, two hundred eighty-one".