27870234 has 32 divisors (see below), whose sum is σ = 64369536. Its totient is φ = 7879680.

The previous prime is 27870233. The next prime is 27870239. The reversal of 27870234 is 43207872.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 27870195 and 27870204.

It is not an unprimeable number, because it can be changed into a prime (27870233) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 654 + ... + 7494.

It is an arithmetic number, because the mean of its divisors is an integer number (2011548).

Almost surely, 2^27870234 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27870234, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32184768).

27870234 is an abundant number, since it is smaller than the sum of its proper divisors (36499302).

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

27870234 is a wasteful number, since it uses less digits than its factorization.

27870234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6950.

The product of its (nonzero) digits is 18816, while the sum is 33.

The square root of 27870234 is about 5279.2266479097. The cubic root of 27870234 is about 303.1890682446.

The spelling of 27870234 in words is "twenty-seven million, eight hundred seventy thousand, two hundred thirty-four".