420660083 has 2 divisors, whose sum is σ = 420660084. Its totient is φ = 420660082.

The previous prime is 420660077. The next prime is 420660113. The reversal of 420660083 is 380066024.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 420660083 - 2¹⁰ = 420659059 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (420665083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210330041 + 210330042.

It is an arithmetic number, because the mean of its divisors is an integer number (210330042).

Almost surely, 2^420660083 is an apocalyptic number.

420660083 is a deficient number, since it is larger than the sum of its proper divisors (1).

420660083 is an equidigital number, since it uses as much as digits as its factorization.

420660083 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 420660083 is about 20509.9995855680. Note that the first 3 decimals coincide. The cubic root of 420660083 is about 749.2793569718.

The spelling of 420660083 in words is "four hundred twenty million, six hundred sixty thousand, eighty-three".