27307764 has 54 divisors (see below), whose sum is σ = 75885810. Its totient is φ = 8273760.

The previous prime is 27307759. The next prime is 27307783. The reversal of 27307764 is 46770372.

It can be written as a sum of positive squares in only one way, i.e., 21344400 + 5963364 = 4620^2 + 2442^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

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 17 ways as a sum of consecutive naturals, for example, 1222 + ... + 7490.

Almost surely, 2^27307764 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 27307764, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37942905).

27307764 is an abundant number, since it is smaller than the sum of its proper divisors (48578046).

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

27307764 is a wasteful number, since it uses less digits than its factorization.

27307764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6301 (or 6285 counting only the distinct ones).

The product of its (nonzero) digits is 49392, while the sum is 36.

The square root of 27307764 is about 5225.6831132398. The cubic root of 27307764 is about 301.1355628996.

The spelling of 27307764 in words is "twenty-seven million, three hundred seven thousand, seven hundred sixty-four".