27930061 has 4 divisors (see below), whose sum is σ = 28611324. Its totient is φ = 27248800.

The previous prime is 27930059. The next prime is 27930107. The reversal of 27930061 is 16003972.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8964036 + 18966025 = 2994^2 + 4355^2 .

It is a cyclic number.

It is not a de Polignac number, because 27930061 - 2¹ = 27930059 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27930041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 340570 + ... + 340651.

It is an arithmetic number, because the mean of its divisors is an integer number (7152831).

Almost surely, 2^27930061 is an apocalyptic number.

It is an amenable number.

27930061 is a deficient number, since it is larger than the sum of its proper divisors (681263).

27930061 is an equidigital number, since it uses as much as digits as its factorization.

27930061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 681262.

The product of its (nonzero) digits is 2268, while the sum is 28.

The square root of 27930061 is about 5284.8898758631. The cubic root of 27930061 is about 303.4058578213.

The spelling of 27930061 in words is "twenty-seven million, nine hundred thirty thousand, sixty-one".