27958249 has 16 divisors (see below), whose sum is σ = 31739904. Its totient is φ = 24397200.

The previous prime is 27958247. The next prime is 27958261. The reversal of 27958249 is 94285972.

It is a cyclic number.

It is not a de Polignac number, because 27958249 - 2¹ = 27958247 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 27958199 and 27958208.

It is not an unprimeable number, because it can be changed into a prime (27958241) 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, 55332 + ... + 55834.

It is an arithmetic number, because the mean of its divisors is an integer number (1983744).

Almost surely, 2^27958249 is an apocalyptic number.

It is an amenable number.

27958249 is a deficient number, since it is larger than the sum of its proper divisors (3781655).

27958249 is a wasteful number, since it uses less digits than its factorization.

27958249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 708.

The product of its digits is 362880, while the sum is 46.

The square root of 27958249 is about 5287.5560517124. The cubic root of 27958249 is about 303.5078927912.

The spelling of 27958249 in words is "twenty-seven million, nine hundred fifty-eight thousand, two hundred forty-nine".