8540506 has 8 divisors (see below), whose sum is σ = 13796244. Its totient is φ = 3941760.

The previous prime is 8540503. The next prime is 8540507. The reversal of 8540506 is 6050458.

It can be written as a sum of positive squares in 2 ways, for example, as 8071281 + 469225 = 2841^2 + 685^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8540501) 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, 164215 + ... + 164266.

Almost surely, 2^8540506 is an apocalyptic number.

8540506 is a deficient number, since it is larger than the sum of its proper divisors (5255738).

8540506 is a wasteful number, since it uses less digits than its factorization.

8540506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 328496.

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 8540506 is about 2922.4144127758. The cubic root of 8540506 is about 204.4064209594.

The spelling of 8540506 in words is "eight million, five hundred forty thousand, five hundred six".