27421445 has 8 divisors (see below), whose sum is σ = 33606144. Its totient is φ = 21470224.

The previous prime is 27421439. The next prime is 27421447. The reversal of 27421445 is 54412472.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 27421445 - 2²⁰ = 26372869 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27421447) 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 7 ways as a sum of consecutive naturals, for example, 58109 + ... + 58578.

It is an arithmetic number, because the mean of its divisors is an integer number (4200768).

Almost surely, 2^27421445 is an apocalyptic number.

It is an amenable number.

27421445 is a deficient number, since it is larger than the sum of its proper divisors (6184699).

27421445 is a wasteful number, since it uses less digits than its factorization.

27421445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116739.

The product of its digits is 8960, while the sum is 29.

The square root of 27421445 is about 5236.5489589996. The cubic root of 27421445 is about 301.5528556698.

The spelling of 27421445 in words is "twenty-seven million, four hundred twenty-one thousand, four hundred forty-five".