27332421 has 16 divisors (see below), whose sum is σ = 37790208. Its totient is φ = 17553600.

The previous prime is 27332419. The next prime is 27332429. The reversal of 27332421 is 12423372.

It is not a de Polignac number, because 27332421 - 2¹ = 27332419 is a prime.

It is a super-2 number, since 2×27332421² = 1494122475442482, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 27332391 and 27332400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27332429) 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 15 ways as a sum of consecutive naturals, for example, 25231 + ... + 26291.

It is an arithmetic number, because the mean of its divisors is an integer number (2361888).

Almost surely, 2^27332421 is an apocalyptic number.

It is an amenable number.

27332421 is a deficient number, since it is larger than the sum of its proper divisors (10457787).

27332421 is a wasteful number, since it uses less digits than its factorization.

27332421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1372.

The product of its digits is 2016, while the sum is 24.

The square root of 27332421 is about 5228.0417940181. The cubic root of 27332421 is about 301.2261704147.

Adding to 27332421 its reverse (12423372), we get a palindrome (39755793).

The spelling of 27332421 in words is "twenty-seven million, three hundred thirty-two thousand, four hundred twenty-one".