27398953 has 2 divisors, whose sum is σ = 27398954. Its totient is φ = 27398952.

The previous prime is 27398929. The next prime is 27398999. The reversal of 27398953 is 35989372.

It is an a-pointer prime, because the next prime (27398999) can be obtained adding 27398953 to its sum of digits (46).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21233664 + 6165289 = 4608^2 + 2483^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27398953 is a prime.

It is not a weakly prime, because it can be changed into another prime (27398923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13699476 + 13699477.

It is an arithmetic number, because the mean of its divisors is an integer number (13699477).

Almost surely, 2^27398953 is an apocalyptic number.

It is an amenable number.

27398953 is a deficient number, since it is larger than the sum of its proper divisors (1).

27398953 is an equidigital number, since it uses as much as digits as its factorization.

27398953 is an evil number, because the sum of its binary digits is even.

The product of its digits is 408240, while the sum is 46.

The square root of 27398953 is about 5234.4009208313. The cubic root of 27398953 is about 301.4703851545.

The spelling of 27398953 in words is "twenty-seven million, three hundred ninety-eight thousand, nine hundred fifty-three".