420883273 has 2 divisors, whose sum is σ = 420883274. Its totient is φ = 420883272.

The previous prime is 420883271. The next prime is 420883349. The reversal of 420883273 is 372388024.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 362635849 + 58247424 = 19043^2 + 7632^2 .

It is a cyclic number.

It is not a de Polignac number, because 420883273 - 2¹ = 420883271 is a prime.

Together with 420883271, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (420883271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210441636 + 210441637.

It is an arithmetic number, because the mean of its divisors is an integer number (210441637).

Almost surely, 2^420883273 is an apocalyptic number.

It is an amenable number.

420883273 is a deficient number, since it is larger than the sum of its proper divisors (1).

420883273 is an equidigital number, since it uses as much as digits as its factorization.

420883273 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64512, while the sum is 37.

The square root of 420883273 is about 20515.4398685478. The cubic root of 420883273 is about 749.4118488174.

The spelling of 420883273 in words is "four hundred twenty million, eight hundred eighty-three thousand, two hundred seventy-three".