420190583 has 2 divisors, whose sum is σ = 420190584. Its totient is φ = 420190582.

The previous prime is 420190553. The next prime is 420190597. The reversal of 420190583 is 385091024.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 420190583 - 2⁸ = 420190327 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (420190543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210095291 + 210095292.

It is an arithmetic number, because the mean of its divisors is an integer number (210095292).

Almost surely, 2^420190583 is an apocalyptic number.

420190583 is a deficient number, since it is larger than the sum of its proper divisors (1).

420190583 is an equidigital number, since it uses as much as digits as its factorization.

420190583 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 420190583 is about 20498.5507536509. The cubic root of 420190583 is about 749.0004955425. Note that the first 3 decimals are identical.

The spelling of 420190583 in words is "four hundred twenty million, one hundred ninety thousand, five hundred eighty-three".