27842957 has 8 divisors (see below), whose sum is σ = 29527416. Its totient is φ = 26163712.

The previous prime is 27842953. The next prime is 27843043. The reversal of 27842957 is 75924872.

It can be written as a sum of positive squares in 4 ways, for example, as 9916201 + 17926756 = 3149^2 + 4234^2 .

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 27842957 - 2² = 27842953 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 (27842953) 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, 17903 + ... + 19395.

It is an arithmetic number, because the mean of its divisors is an integer number (3690927).

Almost surely, 2^27842957 is an apocalyptic number.

It is an amenable number.

27842957 is a deficient number, since it is larger than the sum of its proper divisors (1684459).

27842957 is a wasteful number, since it uses less digits than its factorization.

27842957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2607.

The product of its digits is 282240, while the sum is 44.

The square root of 27842957 is about 5276.6425878583. The cubic root of 27842957 is about 303.0901241202.

The spelling of 27842957 in words is "twenty-seven million, eight hundred forty-two thousand, nine hundred fifty-seven".