420403127 has 2 divisors, whose sum is σ = 420403128. Its totient is φ = 420403126.

The previous prime is 420403103. The next prime is 420403171. The reversal of 420403127 is 721304024.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-420403127 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (420403327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210201563 + 210201564.

It is an arithmetic number, because the mean of its divisors is an integer number (210201564).

Almost surely, 2^420403127 is an apocalyptic number.

420403127 is a deficient number, since it is larger than the sum of its proper divisors (1).

420403127 is an equidigital number, since it uses as much as digits as its factorization.

420403127 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1344, while the sum is 23.

The square root of 420403127 is about 20503.7344647262. The cubic root of 420403127 is about 749.1267626329.

The spelling of 420403127 in words is "four hundred twenty million, four hundred three thousand, one hundred twenty-seven".