9478980 has 72 divisors (see below), whose sum is σ = 32864832. Its totient is φ = 2166336.

The previous prime is 9478957. The next prime is 9478981. The reversal of 9478980 is 898749.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (9478981) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2502 + ... + 5021.

It is an arithmetic number, because the mean of its divisors is an integer number (456456).

Almost surely, 2^9478980 is an apocalyptic number.

9478980 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

9478980 is an abundant number, since it is smaller than the sum of its proper divisors (23385852).

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

9478980 is a wasteful number, since it uses less digits than its factorization.

9478980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7545 (or 7540 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 45.

The square root of 9478980 is about 3078.7952189127. The cubic root of 9478980 is about 211.6348585789.

The spelling of 9478980 in words is "nine million, four hundred seventy-eight thousand, nine hundred eighty".