28227170 has 8 divisors (see below), whose sum is σ = 50808924. Its totient is φ = 11290864.

The previous prime is 28227169. The next prime is 28227181. The reversal of 28227170 is 7172282.

It can be written as a sum of positive squares in 2 ways, for example, as 28206721 + 20449 = 5311^2 + 143^2 .

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

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, 1411349 + ... + 1411368.

Almost surely, 2^28227170 is an apocalyptic number.

28227170 is a deficient number, since it is larger than the sum of its proper divisors (22581754).

28227170 is a wasteful number, since it uses less digits than its factorization.

28227170 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2822724.

The product of its (nonzero) digits is 3136, while the sum is 29.

The square root of 28227170 is about 5312.9248065449. The cubic root of 28227170 is about 304.4779028097.

The spelling of 28227170 in words is "twenty-eight million, two hundred twenty-seven thousand, one hundred seventy".