27285961 has 2 divisors, whose sum is σ = 27285962. Its totient is φ = 27285960.

The previous prime is 27285953. The next prime is 27285967. The reversal of 27285961 is 16958272.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18020025 + 9265936 = 4245^2 + 3044^2 .

It is a cyclic number.

It is not a de Polignac number, because 27285961 - 2³ = 27285953 is a prime.

It is not a weakly prime, because it can be changed into another prime (27285967) 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, 13642980 + 13642981.

It is an arithmetic number, because the mean of its divisors is an integer number (13642981).

Almost surely, 2^27285961 is an apocalyptic number.

It is an amenable number.

27285961 is a deficient number, since it is larger than the sum of its proper divisors (1).

27285961 is an equidigital number, since it uses as much as digits as its factorization.

27285961 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 60480, while the sum is 40.

The square root of 27285961 is about 5223.5965579283. The cubic root of 27285961 is about 301.0553975807.

The spelling of 27285961 in words is "twenty-seven million, two hundred eighty-five thousand, nine hundred sixty-one".