8981478 has 24 divisors (see below), whose sum is σ = 21229416. Its totient is φ = 2721600.

The previous prime is 8981461. The next prime is 8981563. The reversal of 8981478 is 8741898.

It is an alternating number because its digits alternate between even and odd.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22483 + ... + 22878.

It is an arithmetic number, because the mean of its divisors is an integer number (884559).

Almost surely, 2^8981478 is an apocalyptic number.

8981478 is an abundant number, since it is smaller than the sum of its proper divisors (12247938).

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

8981478 is a wasteful number, since it uses less digits than its factorization.

8981478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45380 (or 45377 counting only the distinct ones).

The product of its digits is 129024, while the sum is 45.

The square root of 8981478 is about 2996.9114101021. The cubic root of 8981478 is about 207.8655905549.

The spelling of 8981478 in words is "eight million, nine hundred eighty-one thousand, four hundred seventy-eight".