421750463 has 2 divisors, whose sum is σ = 421750464. Its totient is φ = 421750462.

The previous prime is 421750409. The next prime is 421750481. The reversal of 421750463 is 364057124.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 421750463 - 2²⁸ = 153315007 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (421750403) 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, 210875231 + 210875232.

It is an arithmetic number, because the mean of its divisors is an integer number (210875232).

Almost surely, 2^421750463 is an apocalyptic number.

421750463 is a deficient number, since it is larger than the sum of its proper divisors (1).

421750463 is an equidigital number, since it uses as much as digits as its factorization.

421750463 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 421750463 is about 20536.5640504930. The cubic root of 421750463 is about 749.9261930332.

The spelling of 421750463 in words is "four hundred twenty-one million, seven hundred fifty thousand, four hundred sixty-three".