27398493 has 24 divisors (see below), whose sum is σ = 41391168. Its totient is φ = 18110304.

The previous prime is 27398491. The next prime is 27398531. The reversal of 27398493 is 39489372.

It is a happy number.

27398493 is a `hidden beast` number, since 2 + 73 + 98 + 493 = 666.

It is not a de Polignac number, because 27398493 - 2¹ = 27398491 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27398491) 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 in 23 ways as a sum of consecutive naturals, for example, 32880 + ... + 33702.

It is an arithmetic number, because the mean of its divisors is an integer number (1724632).

Almost surely, 2^27398493 is an apocalyptic number.

It is an amenable number.

27398493 is a deficient number, since it is larger than the sum of its proper divisors (13992675).

27398493 is an equidigital number, since it uses as much as digits as its factorization.

27398493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 975 (or 963 counting only the distinct ones).

The product of its digits is 326592, while the sum is 45.

The square root of 27398493 is about 5234.3569805660. The cubic root of 27398493 is about 301.4686980201.

The spelling of 27398493 in words is "twenty-seven million, three hundred ninety-eight thousand, four hundred ninety-three".