28477484 has 24 divisors (see below), whose sum is σ = 57892128. Its totient is φ = 12003840.

The previous prime is 28477459. The next prime is 28477487. The reversal of 28477484 is 48477482.

It is not an unprimeable number, because it can be changed into a prime (28477487) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6629 + ... + 10044.

It is an arithmetic number, because the mean of its divisors is an integer number (2412172).

Almost surely, 2^28477484 is an apocalyptic number.

It is an amenable number.

28477484 is an abundant number, since it is smaller than the sum of its proper divisors (29414644).

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

28477484 is a wasteful number, since it uses less digits than its factorization.

28477484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16745 (or 16743 counting only the distinct ones).

The product of its digits is 401408, while the sum is 44.

The square root of 28477484 is about 5336.4298927279. The cubic root of 28477484 is about 305.3752757716.

The spelling of 28477484 in words is "twenty-eight million, four hundred seventy-seven thousand, four hundred eighty-four".