27282021 has 8 divisors (see below), whose sum is σ = 39174240. Its totient is φ = 16788912.

The previous prime is 27281993. The next prime is 27282023. The reversal of 27282021 is 12028272.

It is a happy number.

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

It is not a de Polignac number, because 27282021 - 2¹⁵ = 27249253 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 27281982 and 27282000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27282023) 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, 349731 + ... + 349808.

It is an arithmetic number, because the mean of its divisors is an integer number (4896780).

Almost surely, 2^27282021 is an apocalyptic number.

It is an amenable number.

27282021 is a deficient number, since it is larger than the sum of its proper divisors (11892219).

27282021 is a wasteful number, since it uses less digits than its factorization.

27282021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 699555.

The product of its (nonzero) digits is 896, while the sum is 24.

The square root of 27282021 is about 5223.2194095213. The cubic root of 27282021 is about 301.0409064245.

The spelling of 27282021 in words is "twenty-seven million, two hundred eighty-two thousand, twenty-one".