28127194 has 8 divisors (see below), whose sum is σ = 42216948. Its totient is φ = 14054880.

The previous prime is 28127191. The next prime is 28127207. The reversal of 28127194 is 49172182.

It can be written as a sum of positive squares in 2 ways, for example, as 23396569 + 4730625 = 4837^2 + 2175^2 .

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

It is a super-2 number, since 2×28127194² = 1582278084627272, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (28127191) 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, 984 + ... + 7564.

Almost surely, 2^28127194 is an apocalyptic number.

28127194 is a deficient number, since it is larger than the sum of its proper divisors (14089754).

28127194 is a wasteful number, since it uses less digits than its factorization.

28127194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8720.

The product of its digits is 8064, while the sum is 34.

The square root of 28127194 is about 5303.5077071689. The cubic root of 28127194 is about 304.1180073367.

The spelling of 28127194 in words is "twenty-eight million, one hundred twenty-seven thousand, one hundred ninety-four".