27761312 has 12 divisors (see below), whose sum is σ = 54655146. Its totient is φ = 13880640.

The previous prime is 27761297. The next prime is 27761317. The reversal of 27761312 is 21316772.

It can be written as a sum of positive squares in only one way, i.e., 23078416 + 4682896 = 4804^2 + 2164^2 .

It is a super-2 number, since 2×27761312² = 1541380887922688, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (27761317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 433739 + ... + 433802.

Almost surely, 2^27761312 is an apocalyptic number.

It is an amenable number.

27761312 is a deficient number, since it is larger than the sum of its proper divisors (26893834).

27761312 is an equidigital number, since it uses as much as digits as its factorization.

27761312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 867551 (or 867543 counting only the distinct ones).

The product of its digits is 3528, while the sum is 29.

The square root of 27761312 is about 5268.9004545541. The cubic root of 27761312 is about 302.7935797032.

The spelling of 27761312 in words is "twenty-seven million, seven hundred sixty-one thousand, three hundred twelve".