421325039 has 2 divisors, whose sum is σ = 421325040. Its totient is φ = 421325038.

The previous prime is 421325027. The next prime is 421325053. The reversal of 421325039 is 930523124.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 421325039 - 2²⁰ = 420276463 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (421325089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210662519 + 210662520.

It is an arithmetic number, because the mean of its divisors is an integer number (210662520).

Almost surely, 2^421325039 is an apocalyptic number.

421325039 is a deficient number, since it is larger than the sum of its proper divisors (1).

421325039 is an equidigital number, since it uses as much as digits as its factorization.

421325039 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 421325039 is about 20526.2037162258. The cubic root of 421325039 is about 749.6739554657.

The spelling of 421325039 in words is "four hundred twenty-one million, three hundred twenty-five thousand, thirty-nine".