27030649 has 2 divisors, whose sum is σ = 27030650. Its totient is φ = 27030648.

The previous prime is 27030643. The next prime is 27030691. The reversal of 27030649 is 94603072.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24324624 + 2706025 = 4932^2 + 1645^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27030649 is a prime.

It is a super-2 number, since 2×27030649² = 1461311970722402, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 27030649.

It is not a weakly prime, because it can be changed into another prime (27030643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13515324 + 13515325.

It is an arithmetic number, because the mean of its divisors is an integer number (13515325).

Almost surely, 2^27030649 is an apocalyptic number.

It is an amenable number.

27030649 is a deficient number, since it is larger than the sum of its proper divisors (1).

27030649 is an equidigital number, since it uses as much as digits as its factorization.

27030649 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 27030649 is about 5199.1007876363. The cubic root of 27030649 is about 300.1134718898.

The spelling of 27030649 in words is "twenty-seven million, thirty thousand, six hundred forty-nine".