28265727 has 8 divisors (see below), whose sum is σ = 43071616. Its totient is φ = 16151832.

The previous prime is 28265723. The next prime is 28265729. The reversal of 28265727 is 72756282.

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

It is not a de Polignac number, because 28265727 - 2² = 28265723 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28265723) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 672973 + ... + 673014.

It is an arithmetic number, because the mean of its divisors is an integer number (5383952).

Almost surely, 2^28265727 is an apocalyptic number.

28265727 is a deficient number, since it is larger than the sum of its proper divisors (14805889).

28265727 is a wasteful number, since it uses less digits than its factorization.

28265727 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1345997.

The product of its digits is 94080, while the sum is 39.

The square root of 28265727 is about 5316.5521722259. The cubic root of 28265727 is about 304.6164739479.

The spelling of 28265727 in words is "twenty-eight million, two hundred sixty-five thousand, seven hundred twenty-seven".