1426427 has 2 divisors, whose sum is σ = 1426428. Its totient is φ = 1426426.

The previous prime is 1426393. The next prime is 1426429. The reversal of 1426427 is 7246241.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1426427 - 2⁸ = 1426171 is a prime.

Together with 1426429, 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 = 1426396 and 1426405.

It is not a weakly prime, because it can be changed into another prime (1426429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 713213 + 713214.

It is an arithmetic number, because the mean of its divisors is an integer number (713214).

2^1426427 is an apocalyptic number.

1426427 is a deficient number, since it is larger than the sum of its proper divisors (1).

1426427 is an equidigital number, since it uses as much as digits as its factorization.

1426427 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2688, while the sum is 26.

The square root of 1426427 is about 1194.3311935975. The cubic root of 1426427 is about 112.5684061335.

The spelling of 1426427 in words is "one million, four hundred twenty-six thousand, four hundred twenty-seven".