30406427 has 2 divisors, whose sum is σ = 30406428. Its totient is φ = 30406426.

The previous prime is 30406399. The next prime is 30406429. The reversal of 30406427 is 72460403.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 30406427 - 2⁸ = 30406171 is a prime.

Together with 30406429, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 30406396 and 30406405.

It is not a weakly prime, because it can be changed into another prime (30406429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15203213 + 15203214.

It is an arithmetic number, because the mean of its divisors is an integer number (15203214).

Almost surely, 2^30406427 is an apocalyptic number.

30406427 is a deficient number, since it is larger than the sum of its proper divisors (1).

30406427 is an equidigital number, since it uses as much as digits as its factorization.

30406427 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032, while the sum is 26.

The square root of 30406427 is about 5514.2022995171. The cubic root of 30406427 is about 312.1201426139.

The spelling of 30406427 in words is "thirty million, four hundred six thousand, four hundred twenty-seven".