420776735 has 4 divisors (see below), whose sum is σ = 504932088. Its totient is φ = 336621384.

The previous prime is 420776701. The next prime is 420776753. The reversal of 420776735 is 537677024.

420776735 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 420776735 - 2⁸ = 420776479 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 420776692 and 420776701.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42077669 + ... + 42077678.

It is an arithmetic number, because the mean of its divisors is an integer number (126233022).

Almost surely, 2^420776735 is an apocalyptic number.

420776735 is a deficient number, since it is larger than the sum of its proper divisors (84155353).

420776735 is an equidigital number, since it uses as much as digits as its factorization.

420776735 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84155352.

The product of its (nonzero) digits is 246960, while the sum is 41.

The square root of 420776735 is about 20512.8431720227. The cubic root of 420776735 is about 749.3486107161.

The spelling of 420776735 in words is "four hundred twenty million, seven hundred seventy-six thousand, seven hundred thirty-five".