27031956 has 96 divisors (see below), whose sum is σ = 75866112. Its totient is φ = 7330560.

The previous prime is 27031951. The next prime is 27031957. The reversal of 27031956 is 65913072.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27031951) 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 31 ways as a sum of consecutive naturals, for example, 161785 + ... + 161951.

It is an arithmetic number, because the mean of its divisors is an integer number (790272).

Almost surely, 2^27031956 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27031956, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37933056).

27031956 is an abundant number, since it is smaller than the sum of its proper divisors (48834156).

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

27031956 is a wasteful number, since it uses less digits than its factorization.

27031956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269 (or 267 counting only the distinct ones).

The product of its (nonzero) digits is 11340, while the sum is 33.

The square root of 27031956 is about 5199.2264809296. The cubic root of 27031956 is about 300.1183088928.

The spelling of 27031956 in words is "twenty-seven million, thirty-one thousand, nine hundred fifty-six".