27664936 has 16 divisors (see below), whose sum is σ = 55862100. Its totient is φ = 12768384.

The previous prime is 27664921. The next prime is 27664939. The reversal of 27664936 is 63946672.

It can be written as a sum of positive squares in 2 ways, for example, as 27102436 + 562500 = 5206^2 + 750^2 .

It is a junction number, because it is equal to n+sod(n) for n = 27664892 and 27664901.

It is not an unprimeable number, because it can be changed into a prime (27664939) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 132901 + ... + 133108.

Almost surely, 2^27664936 is an apocalyptic number.

27664936 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

27664936 is an abundant number, since it is smaller than the sum of its proper divisors (28197164).

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

27664936 is a wasteful number, since it uses less digits than its factorization.

27664936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266028 (or 266024 counting only the distinct ones).

The product of its digits is 326592, while the sum is 43.

The square root of 27664936 is about 5259.7467619649. The cubic root of 27664936 is about 302.4427813366.

The spelling of 27664936 in words is "twenty-seven million, six hundred sixty-four thousand, nine hundred thirty-six".