27985351 has 8 divisors (see below), whose sum is σ = 28658880. Its totient is φ = 27315168.

The previous prime is 27985313. The next prime is 27985367. The reversal of 27985351 is 15358972.

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 27985351 - 2¹⁵ = 27952583 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27985301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25645 + ... + 26713.

It is an arithmetic number, because the mean of its divisors is an integer number (3582360).

Almost surely, 2^27985351 is an apocalyptic number.

27985351 is a deficient number, since it is larger than the sum of its proper divisors (673529).

27985351 is a wasteful number, since it uses less digits than its factorization.

27985351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1673.

The product of its digits is 75600, while the sum is 40.

The square root of 27985351 is about 5290.1182406445. The cubic root of 27985351 is about 303.6059320071.

The spelling of 27985351 in words is "twenty-seven million, nine hundred eighty-five thousand, three hundred fifty-one".