30427 has 2 divisors, whose sum is σ = 30428. Its totient is φ = 30426.

The previous prime is 30403. The next prime is 30431. The reversal of 30427 is 72403.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30427 is a prime.

It is a nialpdrome in base 8.

It is a self number, because there is not a number n which added to its sum of digits gives 30427.

It is not a weakly prime, because it can be changed into another prime (30467) 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 as a sum of consecutive naturals, namely, 15213 + 15214.

It is an arithmetic number, because the mean of its divisors is an integer number (15214).

2³⁰⁴²⁷ is an apocalyptic number.

30427 is a deficient number, since it is larger than the sum of its proper divisors (1).

30427 is an equidigital number, since it uses as much as digits as its factorization.

30427 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 168, while the sum is 16.

The square root of 30427 is about 174.4333683674. The cubic root of 30427 is about 31.2190520279.

The spelling of 30427 in words is "thirty thousand, four hundred twenty-seven".