421340327 has 2 divisors, whose sum is σ = 421340328. Its totient is φ = 421340326.

The previous prime is 421340323. The next prime is 421340351. The reversal of 421340327 is 723043124.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 421340327 - 2² = 421340323 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 421340296 and 421340305.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (421340321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210670163 + 210670164.

It is an arithmetic number, because the mean of its divisors is an integer number (210670164).

Almost surely, 2^421340327 is an apocalyptic number.

421340327 is a deficient number, since it is larger than the sum of its proper divisors (1).

421340327 is an equidigital number, since it uses as much as digits as its factorization.

421340327 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 421340327 is about 20526.5761148809. The cubic root of 421340327 is about 749.6830227935.

The spelling of 421340327 in words is "four hundred twenty-one million, three hundred forty thousand, three hundred twenty-seven".