27320761 has 8 divisors (see below), whose sum is σ = 29826440. Its totient is φ = 24872832.

The previous prime is 27320753. The next prime is 27320773. The reversal of 27320761 is 16702372.

It can be written as a sum of positive squares in 4 ways, for example, as 5089536 + 22231225 = 2256^2 + 4715^2 .

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 27320761 - 2³ = 27320753 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27320731) 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, 13446 + ... + 15343.

It is an arithmetic number, because the mean of its divisors is an integer number (3728305).

Almost surely, 2^27320761 is an apocalyptic number.

It is an amenable number.

27320761 is a deficient number, since it is larger than the sum of its proper divisors (2505679).

27320761 is a wasteful number, since it uses less digits than its factorization.

27320761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28875.

The product of its (nonzero) digits is 3528, while the sum is 28.

The square root of 27320761 is about 5226.9265347812. The cubic root of 27320761 is about 301.1833300004.

The spelling of 27320761 in words is "twenty-seven million, three hundred twenty thousand, seven hundred sixty-one".