27827420 has 24 divisors (see below), whose sum is σ = 58660224. Its totient is φ = 11088576.

The previous prime is 27827411. The next prime is 27827461. The reversal of 27827420 is 2472872.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3029 + ... + 8051.

It is an arithmetic number, because the mean of its divisors is an integer number (2444176).

Almost surely, 2^27827420 is an apocalyptic number.

27827420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27827420 is an abundant number, since it is smaller than the sum of its proper divisors (30832804).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

27827420 is a wasteful number, since it uses less digits than its factorization.

27827420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5309 (or 5307 counting only the distinct ones).

The product of its (nonzero) digits is 12544, while the sum is 32.

The square root of 27827420 is about 5275.1701394363. The cubic root of 27827420 is about 303.0337365813.

The spelling of 27827420 in words is "twenty-seven million, eight hundred twenty-seven thousand, four hundred twenty".