421989301 has 2 divisors, whose sum is σ = 421989302. Its totient is φ = 421989300.

The previous prime is 421989287. The next prime is 421989311. The reversal of 421989301 is 103989124.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 262472401 + 159516900 = 16201^2 + 12630^2 .

It is a cyclic number.

It is not a de Polignac number, because 421989301 - 2⁷ = 421989173 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (421989311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210994650 + 210994651.

It is an arithmetic number, because the mean of its divisors is an integer number (210994651).

Almost surely, 2^421989301 is an apocalyptic number.

It is an amenable number.

421989301 is a deficient number, since it is larger than the sum of its proper divisors (1).

421989301 is an equidigital number, since it uses as much as digits as its factorization.

421989301 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15552, while the sum is 37.

The square root of 421989301 is about 20542.3781729380. The cubic root of 421989301 is about 750.0677278097.

The spelling of 421989301 in words is "four hundred twenty-one million, nine hundred eighty-nine thousand, three hundred one".