28084670 has 16 divisors (see below), whose sum is σ = 50619168. Its totient is φ = 11219040.

The previous prime is 28084669. The next prime is 28084691. The reversal of 28084670 is 7648082.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 28084670.

It is a congruent 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, 9287 + ... + 11933.

It is an arithmetic number, because the mean of its divisors is an integer number (3163698).

Almost surely, 2^28084670 is an apocalyptic number.

28084670 is a deficient number, since it is larger than the sum of its proper divisors (22534498).

28084670 is a wasteful number, since it uses less digits than its factorization.

28084670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3715.

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

The square root of 28084670 is about 5299.4971459564. The cubic root of 28084670 is about 303.9646701209.

The spelling of 28084670 in words is "twenty-eight million, eighty-four thousand, six hundred seventy".