27428273 has 8 divisors (see below), whose sum is σ = 28581120. Its totient is φ = 26292240.

The previous prime is 27428251. The next prime is 27428299. The reversal of 27428273 is 37282472.

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

It is a cyclic number.

It is not a de Polignac number, because 27428273 - 2⁶ = 27428209 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (27428243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 818 + ... + 7451.

It is an arithmetic number, because the mean of its divisors is an integer number (3572640).

Almost surely, 2^27428273 is an apocalyptic number.

It is an amenable number.

27428273 is a deficient number, since it is larger than the sum of its proper divisors (1152847).

27428273 is a wasteful number, since it uses less digits than its factorization.

27428273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8407.

The product of its digits is 37632, while the sum is 35.

The square root of 27428273 is about 5237.2008745130. The cubic root of 27428273 is about 301.5778827003.

The spelling of 27428273 in words is "twenty-seven million, four hundred twenty-eight thousand, two hundred seventy-three".