27421471 has 8 divisors (see below), whose sum is σ = 34187904. Its totient is φ = 21367320.

The previous prime is 27421469. The next prime is 27421481. The reversal of 27421471 is 17412472.

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 27421471 - 2¹ = 27421469 is a prime.

It is a super-3 number, since 3×27421471³ (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27421411) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 177985 + ... + 178138.

It is an arithmetic number, because the mean of its divisors is an integer number (4273488).

Almost surely, 2^27421471 is an apocalyptic number.

27421471 is a deficient number, since it is larger than the sum of its proper divisors (6766433).

27421471 is a wasteful number, since it uses less digits than its factorization.

27421471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 356141.

The product of its digits is 3136, while the sum is 28.

The square root of 27421471 is about 5236.5514415501. The cubic root of 27421471 is about 301.5529509769.

The spelling of 27421471 in words is "twenty-seven million, four hundred twenty-one thousand, four hundred seventy-one".