28473234 has 8 divisors (see below), whose sum is σ = 56946480. Its totient is φ = 9491076.

The previous prime is 28473227. The next prime is 28473251. The reversal of 28473234 is 43237482.

It is a sphenic number, since it is the product of 3 distinct primes.

28473234 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 28473195 and 28473204.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2372764 + ... + 2372775.

It is an arithmetic number, because the mean of its divisors is an integer number (7118310).

Almost surely, 2^28473234 is an apocalyptic number.

28473234 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

28473234 is a wasteful number, since it uses less digits than its factorization.

28473234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4745544.

The product of its digits is 32256, while the sum is 33.

The square root of 28473234 is about 5336.0316715702. The cubic root of 28473234 is about 305.3600835412.

The spelling of 28473234 in words is "twenty-eight million, four hundred seventy-three thousand, two hundred thirty-four".