8478745 has 8 divisors (see below), whose sum is σ = 11099520. Its totient is φ = 6166320.

The previous prime is 8478739. The next prime is 8478751. The reversal of 8478745 is 5478748.

It is an interprime number because it is at equal distance from previous prime (8478739) and next prime (8478751).

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

It is not a de Polignac number, because 8478745 - 2³ = 8478737 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77025 + ... + 77134.

It is an arithmetic number, because the mean of its divisors is an integer number (1387440).

Almost surely, 2^8478745 is an apocalyptic number.

It is an amenable number.

8478745 is a deficient number, since it is larger than the sum of its proper divisors (2620775).

8478745 is a wasteful number, since it uses less digits than its factorization.

8478745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154175.

The product of its digits is 250880, while the sum is 43.

The square root of 8478745 is about 2911.8284633543. The cubic root of 8478745 is about 203.9125041289.

The spelling of 8478745 in words is "eight million, four hundred seventy-eight thousand, seven hundred forty-five".