420683339 has 2 divisors, whose sum is σ = 420683340. Its totient is φ = 420683338.

The previous prime is 420683311. The next prime is 420683353. The reversal of 420683339 is 933386024.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 420683339 - 2¹² = 420679243 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (420683359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210341669 + 210341670.

It is an arithmetic number, because the mean of its divisors is an integer number (210341670).

Almost surely, 2^420683339 is an apocalyptic number.

420683339 is a deficient number, since it is larger than the sum of its proper divisors (1).

420683339 is an equidigital number, since it uses as much as digits as its factorization.

420683339 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 93312, while the sum is 38.

The square root of 420683339 is about 20510.5665206985. The cubic root of 420683339 is about 749.2931645727.

The spelling of 420683339 in words is "four hundred twenty million, six hundred eighty-three thousand, three hundred thirty-nine".