27021313 has 16 divisors (see below), whose sum is σ = 31397760. Its totient is φ = 22982400.

The previous prime is 27021311. The next prime is 27021317. The reversal of 27021313 is 31312072.

It is a cyclic number.

It is not a de Polignac number, because 27021313 - 2¹ = 27021311 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27021311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42508 + ... + 43138.

It is an arithmetic number, because the mean of its divisors is an integer number (1962360).

Almost surely, 2^27021313 is an apocalyptic number.

It is an amenable number.

27021313 is a deficient number, since it is larger than the sum of its proper divisors (4376447).

27021313 is a wasteful number, since it uses less digits than its factorization.

27021313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 888.

The product of its (nonzero) digits is 252, while the sum is 19.

The square root of 27021313 is about 5198.2028625285. The cubic root of 27021313 is about 300.0789162760.

Adding to 27021313 its reverse (31312072), we get a palindrome (58333385).

The spelling of 27021313 in words is "twenty-seven million, twenty-one thousand, three hundred thirteen".