8281946 has 4 divisors (see below), whose sum is σ = 12422922. Its totient is φ = 4140972.

The previous prime is 8281943. The next prime is 8281979. The reversal of 8281946 is 6491828.

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

It can be written as a sum of positive squares in only one way, i.e., 5340721 + 2941225 = 2311^2 + 1715^2 .

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (8281943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2070485 + ... + 2070488.

Almost surely, 2^8281946 is an apocalyptic number.

8281946 is a deficient number, since it is larger than the sum of its proper divisors (4140976).

8281946 is a wasteful number, since it uses less digits than its factorization.

8281946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4140975.

The product of its digits is 27648, while the sum is 38.

The square root of 8281946 is about 2877.8370349969. The cubic root of 8281946 is about 202.3224761299.

It can be divided in two parts, 82 and 81946, that added together give a palindrome (82028).

The spelling of 8281946 in words is "eight million, two hundred eighty-one thousand, nine hundred forty-six".