420510763 has 2 divisors, whose sum is σ = 420510764. Its totient is φ = 420510762.

The previous prime is 420510731. The next prime is 420510781. The reversal of 420510763 is 367015024.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 420510763 - 2⁵ = 420510731 is a prime.

It is equal to p_22370194 and since 420510763 and 22370194 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (420510703) 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, 210255381 + 210255382.

It is an arithmetic number, because the mean of its divisors is an integer number (210255382).

Almost surely, 2^420510763 is an apocalyptic number.

420510763 is a deficient number, since it is larger than the sum of its proper divisors (1).

420510763 is an equidigital number, since it uses as much as digits as its factorization.

420510763 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 420510763 is about 20506.3590868784. The cubic root of 420510763 is about 749.1906902637.

Adding to 420510763 its reverse (367015024), we get a palindrome (787525787).

The spelling of 420510763 in words is "four hundred twenty million, five hundred ten thousand, seven hundred sixty-three".