8540978 has 8 divisors (see below), whose sum is σ = 12897900. Its totient is φ = 4241680.

The previous prime is 8540977. The next prime is 8540989. The reversal of 8540978 is 8790458.

It can be written as a sum of positive squares in 2 ways, for example, as 8427409 + 113569 = 2903^2 + 337^2 .

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

It is not an unprimeable number, because it can be changed into a prime (8540971) 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, 14033 + ... + 14628.

Almost surely, 2^8540978 is an apocalyptic number.

8540978 is a deficient number, since it is larger than the sum of its proper divisors (4356922).

8540978 is a wasteful number, since it uses less digits than its factorization.

8540978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28812.

The product of its (nonzero) digits is 80640, while the sum is 41.

The square root of 8540978 is about 2922.4951668052. The cubic root of 8540978 is about 204.4101864682.

The spelling of 8540978 in words is "eight million, five hundred forty thousand, nine hundred seventy-eight".