28478006 has 8 divisors (see below), whose sum is σ = 42894984. Its totient is φ = 14179680.

The previous prime is 28478003. The next prime is 28478039. The reversal of 28478006 is 60087482.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28478003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29060 + ... + 30023.

It is an arithmetic number, because the mean of its divisors is an integer number (5361873).

Almost surely, 2^28478006 is an apocalyptic number.

28478006 is a deficient number, since it is larger than the sum of its proper divisors (14416978).

28478006 is a wasteful number, since it uses less digits than its factorization.

28478006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59326.

The product of its (nonzero) digits is 21504, while the sum is 35.

The square root of 28478006 is about 5336.4788016069. The cubic root of 28478006 is about 305.3771416307.

The spelling of 28478006 in words is "twenty-eight million, four hundred seventy-eight thousand, six".