28473578 has 16 divisors (see below), whose sum is σ = 48885120. Its totient is φ = 12184656.

The previous prime is 28473553. The next prime is 28473607. The reversal of 28473578 is 87537482.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12728 + ... + 14796.

It is an arithmetic number, because the mean of its divisors is an integer number (3055320).

Almost surely, 2^28473578 is an apocalyptic number.

28473578 is a deficient number, since it is larger than the sum of its proper divisors (20411542).

28473578 is a wasteful number, since it uses less digits than its factorization.

28473578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3061.

The product of its digits is 376320, while the sum is 44.

The square root of 28473578 is about 5336.0639051646. The cubic root of 28473578 is about 305.3613132745.

The spelling of 28473578 in words is "twenty-eight million, four hundred seventy-three thousand, five hundred seventy-eight".