35220665 has 4 divisors (see below), whose sum is σ = 42264804. Its totient is φ = 28176528.

The previous prime is 35220643. The next prime is 35220667. The reversal of 35220665 is 56602253.

It is a happy number.

35220665 is digitally balanced in base 2, 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 can be written as a sum of positive squares in 2 ways, for example, as 11669056 + 23551609 = 3416^2 + 4853^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-35220665 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (35220667) 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 in 3 ways as a sum of consecutive naturals, for example, 3522062 + ... + 3522071.

It is an arithmetic number, because the mean of its divisors is an integer number (10566201).

Almost surely, 2^35220665 is an apocalyptic number.

It is an amenable number.

35220665 is a deficient number, since it is larger than the sum of its proper divisors (7044139).

35220665 is an equidigital number, since it uses as much as digits as its factorization.

35220665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7044138.

The product of its (nonzero) digits is 10800, while the sum is 29.

The square root of 35220665 is about 5934.7000766677. The cubic root of 35220665 is about 327.7926293078.

The spelling of 35220665 in words is "thirty-five million, two hundred twenty thousand, six hundred sixty-five".