27313561 has 8 divisors (see below), whose sum is σ = 29836800. Its totient is φ = 24797040.

The previous prime is 27313549. The next prime is 27313567. The reversal of 27313561 is 16531372.

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 27313561 - 2²¹ = 25216409 is a prime.

It is a super-2 number, since 2×27313561² = 1492061229001442, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27313567) 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, 11080 + ... + 13318.

It is an arithmetic number, because the mean of its divisors is an integer number (3729600).

Almost surely, 2^27313561 is an apocalyptic number.

It is an amenable number.

27313561 is a deficient number, since it is larger than the sum of its proper divisors (2523239).

27313561 is a wasteful number, since it uses less digits than its factorization.

27313561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3359.

The product of its digits is 3780, while the sum is 28.

The square root of 27313561 is about 5226.2377481320. The cubic root of 27313561 is about 301.1568701409.

The spelling of 27313561 in words is "twenty-seven million, three hundred thirteen thousand, five hundred sixty-one".