27998675 has 6 divisors (see below), whose sum is σ = 34718388. Its totient is φ = 22398920.

The previous prime is 27998671. The next prime is 27998713. The reversal of 27998675 is 57689972.

It is not a de Polignac number, because 27998675 - 2² = 27998671 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27998671) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 559949 + ... + 559998.

It is an arithmetic number, because the mean of its divisors is an integer number (5786398).

Almost surely, 2^27998675 is an apocalyptic number.

27998675 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

27998675 is a deficient number, since it is larger than the sum of its proper divisors (6719713).

27998675 is a wasteful number, since it uses less digits than its factorization.

27998675 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1119957 (or 1119952 counting only the distinct ones).

The product of its digits is 1905120, while the sum is 53.

The square root of 27998675 is about 5291.3774199163. The cubic root of 27998675 is about 303.6541072544.

The spelling of 27998675 in words is "twenty-seven million, nine hundred ninety-eight thousand, six hundred seventy-five".