420896065 has 8 divisors (see below), whose sum is σ = 505307880. Its totient is φ = 336561792.

The previous prime is 420896059. The next prime is 420896087. The reversal of 420896065 is 560698024.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 144937521 + 275958544 = 12039^2 + 16612^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 420896065 - 2²³ = 412507457 is a prime.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 6684 + ... + 29773.

It is an arithmetic number, because the mean of its divisors is an integer number (63163485).

Almost surely, 2^420896065 is an apocalyptic number.

It is an amenable number.

420896065 is a deficient number, since it is larger than the sum of its proper divisors (84411815).

420896065 is a wasteful number, since it uses less digits than its factorization.

420896065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38771.

The product of its (nonzero) digits is 103680, while the sum is 40.

The square root of 420896065 is about 20515.7516313685. The cubic root of 420896065 is about 749.4194410881.

The spelling of 420896065 in words is "four hundred twenty million, eight hundred ninety-six thousand, sixty-five".