27975953 has 2 divisors, whose sum is σ = 27975954. Its totient is φ = 27975952.

The previous prime is 27975947. The next prime is 27975977. The reversal of 27975953 is 35957972.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19864849 + 8111104 = 4457^2 + 2848^2 .

It is a cyclic number.

It is not a de Polignac number, because 27975953 - 2¹⁶ = 27910417 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 27975898 and 27975907.

It is not a weakly prime, because it can be changed into another prime (27975943) 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, 13987976 + 13987977.

It is an arithmetic number, because the mean of its divisors is an integer number (13987977).

Almost surely, 2^27975953 is an apocalyptic number.

It is an amenable number.

27975953 is a deficient number, since it is larger than the sum of its proper divisors (1).

27975953 is an equidigital number, since it uses as much as digits as its factorization.

27975953 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 595350, while the sum is 47.

The square root of 27975953 is about 5289.2299061395. The cubic root of 27975953 is about 303.5719427007.

The spelling of 27975953 in words is "twenty-seven million, nine hundred seventy-five thousand, nine hundred fifty-three".