27763969 has 2 divisors, whose sum is σ = 27763970. Its totient is φ = 27763968.

The previous prime is 27763963. The next prime is 27763979. The reversal of 27763969 is 96936772.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25401600 + 2362369 = 5040^2 + 1537^2 .

It is a cyclic number.

It is not a de Polignac number, because 27763969 - 2³ = 27763961 is a prime.

It is a super-2 number, since 2×27763969² = 1541675949265922, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (27763961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13881984 + 13881985.

It is an arithmetic number, because the mean of its divisors is an integer number (13881985).

Almost surely, 2^27763969 is an apocalyptic number.

It is an amenable number.

27763969 is a deficient number, since it is larger than the sum of its proper divisors (1).

27763969 is an equidigital number, since it uses as much as digits as its factorization.

27763969 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 857304, while the sum is 49.

The square root of 27763969 is about 5269.1525884150. The cubic root of 27763969 is about 302.8032393916.

It can be divided in two parts, 277 and 63969, that added together give a palindrome (64246).

The spelling of 27763969 in words is "twenty-seven million, seven hundred sixty-three thousand, nine hundred sixty-nine".