27898343 has 16 divisors (see below), whose sum is σ = 32433696. Its totient is φ = 23715840.

The previous prime is 27898303. The next prime is 27898361. The reversal of 27898343 is 34389872.

It is not a de Polignac number, because 27898343 - 2⁶ = 27898279 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 27898294 and 27898303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27898303) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35705 + ... + 36477.

It is an arithmetic number, because the mean of its divisors is an integer number (2027106).

Almost surely, 2^27898343 is an apocalyptic number.

27898343 is a deficient number, since it is larger than the sum of its proper divisors (4535353).

27898343 is a wasteful number, since it uses less digits than its factorization.

27898343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 994.

The product of its digits is 290304, while the sum is 44.

The square root of 27898343 is about 5281.8882040422. Note that the first 3 decimals coincide. The cubic root of 27898343 is about 303.2909628323.

The spelling of 27898343 in words is "twenty-seven million, eight hundred ninety-eight thousand, three hundred forty-three".