427619 has 2 divisors, whose sum is σ = 427620. Its totient is φ = 427618.

The previous prime is 427597. The next prime is 427621. The reversal of 427619 is 916724.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-427619 is a prime.

It is a super-2 number, since 2×427619² = 365716018322, which contains 22 as substring.

Together with 427621, 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 = 427591 and 427600.

It is not a weakly prime, because it can be changed into another prime (427919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213809 + 213810.

It is an arithmetic number, because the mean of its divisors is an integer number (213810).

2⁴²⁷⁶¹⁹ is an apocalyptic number.

427619 is a deficient number, since it is larger than the sum of its proper divisors (1).

427619 is an equidigital number, since it uses as much as digits as its factorization.

427619 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3024, while the sum is 29.

The square root of 427619 is about 653.9258367736. The cubic root of 427619 is about 75.3388519378.

The spelling of 427619 in words is "four hundred twenty-seven thousand, six hundred nineteen".