421050479 has 2 divisors, whose sum is σ = 421050480. Its totient is φ = 421050478.

The previous prime is 421050439. The next prime is 421050481. The reversal of 421050479 is 974050124.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 421050479 - 2¹² = 421046383 is a prime.

It is a super-3 number, since 3×421050479³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

Together with 421050481, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (421050419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210525239 + 210525240.

It is an arithmetic number, because the mean of its divisors is an integer number (210525240).

Almost surely, 2^421050479 is an apocalyptic number.

421050479 is a deficient number, since it is larger than the sum of its proper divisors (1).

421050479 is an equidigital number, since it uses as much as digits as its factorization.

421050479 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 421050479 is about 20519.5145897753. The cubic root of 421050479 is about 749.5110763037.

The spelling of 421050479 in words is "four hundred twenty-one million, fifty thousand, four hundred seventy-nine".