27857034 has 72 divisors (see below), whose sum is σ = 66148992. Its totient is φ = 8777160.

The previous prime is 27857029. The next prime is 27857087. The reversal of 27857034 is 43075872.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 27857034.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 647817 + ... + 647859.

It is an arithmetic number, because the mean of its divisors is an integer number (918736).

Almost surely, 2^27857034 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27857034, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33074496).

27857034 is an abundant number, since it is smaller than the sum of its proper divisors (38291958).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

27857034 is an equidigital number, since it uses as much as digits as its factorization.

27857034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134 (or 79 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 36.

The square root of 27857034 is about 5277.9763167335. The cubic root of 27857034 is about 303.1411948552.

The spelling of 27857034 in words is "twenty-seven million, eight hundred fifty-seven thousand, thirty-four".