8290945 has 16 divisors (see below), whose sum is σ = 10780560. Its totient is φ = 6084864.

The previous prime is 8290943. The next prime is 8290967. The reversal of 8290945 is 5490928.

It can be written as a sum of positive squares in 8 ways, for example, as 501264 + 7789681 = 708^2 + 2791^2 .

It is a cyclic number.

It is not a de Polignac number, because 8290945 - 2¹ = 8290943 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8290943) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14607 + ... + 15163.

It is an arithmetic number, because the mean of its divisors is an integer number (673785).

Almost surely, 2^8290945 is an apocalyptic number.

It is an amenable number.

8290945 is a deficient number, since it is larger than the sum of its proper divisors (2489615).

8290945 is a wasteful number, since it uses less digits than its factorization.

8290945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 804.

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 8290945 is about 2879.4001111343. The cubic root of 8290945 is about 202.3957294818.

The spelling of 8290945 in words is "eight million, two hundred ninety thousand, nine hundred forty-five".