27908953 has 2 divisors, whose sum is σ = 27908954. Its totient is φ = 27908952.

The previous prime is 27908921. The next prime is 27908977. The reversal of 27908953 is 35980972.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27489049 + 419904 = 5243^2 + 648^2 .

It is a cyclic number.

It is not a de Polignac number, because 27908953 - 2⁵ = 27908921 is a prime.

It is not a weakly prime, because it can be changed into another prime (27908053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13954476 + 13954477.

It is an arithmetic number, because the mean of its divisors is an integer number (13954477).

Almost surely, 2^27908953 is an apocalyptic number.

It is an amenable number.

27908953 is a deficient number, since it is larger than the sum of its proper divisors (1).

27908953 is an equidigital number, since it uses as much as digits as its factorization.

27908953 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 136080, while the sum is 43.

The square root of 27908953 is about 5282.8924842363. The cubic root of 27908953 is about 303.3294060864.

The spelling of 27908953 in words is "twenty-seven million, nine hundred eight thousand, nine hundred fifty-three".