27660733 has 2 divisors, whose sum is σ = 27660734. Its totient is φ = 27660732.

The previous prime is 27660709. The next prime is 27660767. The reversal of 27660733 is 33706672.

It is a happy number.

It is an a-pointer prime, because the next prime (27660767) can be obtained adding 27660733 to its sum of digits (34).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22448644 + 5212089 = 4738^2 + 2283^2 .

It is a cyclic number.

It is not a de Polignac number, because 27660733 - 2⁵ = 27660701 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27660133) 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 as a sum of consecutive naturals, namely, 13830366 + 13830367.

It is an arithmetic number, because the mean of its divisors is an integer number (13830367).

Almost surely, 2^27660733 is an apocalyptic number.

It is an amenable number.

27660733 is a deficient number, since it is larger than the sum of its proper divisors (1).

27660733 is an equidigital number, since it uses as much as digits as its factorization.

27660733 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31752, while the sum is 34.

The square root of 27660733 is about 5259.3472028380. The cubic root of 27660733 is about 302.4274643376.

It can be divided in two parts, 276 and 60733, that added together give a square (61009 = 247²).

The spelling of 27660733 in words is "twenty-seven million, six hundred sixty thousand, seven hundred thirty-three".