27697012 has 48 divisors (see below), whose sum is σ = 60576768. Its totient is φ = 10805760.

The previous prime is 27696983. The next prime is 27697051. The reversal of 27697012 is 21079672.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13818 + ... + 15694.

It is an arithmetic number, because the mean of its divisors is an integer number (1262016).

Almost surely, 2^27697012 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 27697012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30288384).

27697012 is an abundant number, since it is smaller than the sum of its proper divisors (32879756).

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

27697012 is a wasteful number, since it uses less digits than its factorization.

27697012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1936 (or 1934 counting only the distinct ones).

The product of its (nonzero) digits is 10584, while the sum is 34.

The square root of 27697012 is about 5262.7950748628. The cubic root of 27697012 is about 302.5596248836.

The spelling of 27697012 in words is "twenty-seven million, six hundred ninety-seven thousand, twelve".