8478980 has 12 divisors (see below), whose sum is σ = 17805900. Its totient is φ = 3391584.

The previous prime is 8478961. The next prime is 8478989. The reversal of 8478980 is 898748.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 4251844 + 4227136 = 2062^2 + 2056^2 .

It is not an unprimeable number, because it can be changed into a prime (8478989) 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, 211955 + ... + 211994.

It is an arithmetic number, because the mean of its divisors is an integer number (1483825).

Almost surely, 2^8478980 is an apocalyptic number.

It is an amenable number.

8478980 is an abundant number, since it is smaller than the sum of its proper divisors (9326920).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8478980 is a wasteful number, since it uses less digits than its factorization.

8478980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423958 (or 423956 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 44.

The square root of 8478980 is about 2911.8688157264. The cubic root of 8478980 is about 203.9143880160.

The spelling of 8478980 in words is "eight million, four hundred seventy-eight thousand, nine hundred eighty".