27428953 has 2 divisors, whose sum is σ = 27428954. Its totient is φ = 27428952.

The previous prime is 27428909. The next prime is 27428971. The reversal of 27428953 is 35982472.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23299929 + 4129024 = 4827^2 + 2032^2 .

It is a cyclic number.

It is not a de Polignac number, because 27428953 - 2⁹ = 27428441 is a prime.

It is not a weakly prime, because it can be changed into another prime (27428053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13714476 + 13714477.

It is an arithmetic number, because the mean of its divisors is an integer number (13714477).

Almost surely, 2^27428953 is an apocalyptic number.

It is an amenable number.

27428953 is a deficient number, since it is larger than the sum of its proper divisors (1).

27428953 is an equidigital number, since it uses as much as digits as its factorization.

27428953 is an evil number, because the sum of its binary digits is even.

The product of its digits is 120960, while the sum is 40.

The square root of 27428953 is about 5237.2657942862. The cubic root of 27428953 is about 301.5803749130.

The spelling of 27428953 in words is "twenty-seven million, four hundred twenty-eight thousand, nine hundred fifty-three".