421430327 has 2 divisors, whose sum is σ = 421430328. Its totient is φ = 421430326.

The previous prime is 421430281. The next prime is 421430329. The reversal of 421430327 is 723034124.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 421430327 - 2⁸ = 421430071 is a prime.

Together with 421430329, 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 = 421430296 and 421430305.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (421430329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210715163 + 210715164.

It is an arithmetic number, because the mean of its divisors is an integer number (210715164).

Almost surely, 2^421430327 is an apocalyptic number.

421430327 is a deficient number, since it is larger than the sum of its proper divisors (1).

421430327 is an equidigital number, since it uses as much as digits as its factorization.

421430327 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 421430327 is about 20528.7682777121. The cubic root of 421430327 is about 749.7363974365.

The spelling of 421430327 in words is "four hundred twenty-one million, four hundred thirty thousand, three hundred twenty-seven".