8487145 has 8 divisors (see below), whose sum is σ = 10200456. Its totient is φ = 6779136.

The previous prime is 8487139. The next prime is 8487163. The reversal of 8487145 is 5417848.

It can be written as a sum of positive squares in 4 ways, for example, as 1432809 + 7054336 = 1197^2 + 2656^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 8487145 - 2³ = 8487137 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4689 + ... + 6241.

It is an arithmetic number, because the mean of its divisors is an integer number (1275057).

Almost surely, 2^8487145 is an apocalyptic number.

It is an amenable number.

8487145 is a deficient number, since it is larger than the sum of its proper divisors (1713311).

8487145 is a wasteful number, since it uses less digits than its factorization.

8487145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2651.

The product of its digits is 35840, while the sum is 37.

The square root of 8487145 is about 2913.2704989410. The cubic root of 8487145 is about 203.9798214695.

The spelling of 8487145 in words is "eight million, four hundred eighty-seven thousand, one hundred forty-five".