8241745 has 4 divisors (see below), whose sum is σ = 9890100. Its totient is φ = 6593392.

The previous prime is 8241721. The next prime is 8241749. The reversal of 8241745 is 5471428.

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 4870849 + 3370896 = 2207^2 + 1836^2 .

It is a cyclic number.

It is not a de Polignac number, because 8241745 - 2¹⁷ = 8110673 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8241749) 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, 824170 + ... + 824179.

It is an arithmetic number, because the mean of its divisors is an integer number (2472525).

Almost surely, 2^8241745 is an apocalyptic number.

It is an amenable number.

8241745 is a deficient number, since it is larger than the sum of its proper divisors (1648355).

8241745 is a wasteful number, since it uses less digits than its factorization.

8241745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1648354.

The product of its digits is 8960, while the sum is 31.

The square root of 8241745 is about 2870.8439525687. The cubic root of 8241745 is about 201.9945837191.

The spelling of 8241745 in words is "eight million, two hundred forty-one thousand, seven hundred forty-five".