427204319 has 2 divisors, whose sum is σ = 427204320. Its totient is φ = 427204318.

The previous prime is 427204243. The next prime is 427204321. The reversal of 427204319 is 913402724.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-427204319 is a prime.

It is a super-2 number, since 2×427204319² = 365007060344507522, which contains 22 as substring.

Together with 427204321, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (427204399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213602159 + 213602160.

It is an arithmetic number, because the mean of its divisors is an integer number (213602160).

Almost surely, 2^427204319 is an apocalyptic number.

427204319 is a deficient number, since it is larger than the sum of its proper divisors (1).

427204319 is an equidigital number, since it uses as much as digits as its factorization.

427204319 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 427204319 is about 20668.9215732220. The cubic root of 427204319 is about 753.1449092583.

The spelling of 427204319 in words is "four hundred twenty-seven million, two hundred four thousand, three hundred nineteen".