720202001 has 4 divisors (see below), whose sum is σ = 733790772. Its totient is φ = 706613232.

The previous prime is 720201953. The next prime is 720202019. The reversal of 720202001 is 100202027.

720202001 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 492795601 + 227406400 = 22199^2 + 15080^2 .

It is a cyclic number.

It is not a de Polignac number, because 720202001 - 2¹⁴ = 720185617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (720202031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6794306 + ... + 6794411.

It is an arithmetic number, because the mean of its divisors is an integer number (183447693).

Almost surely, 2^720202001 is an apocalyptic number.

It is an amenable number.

720202001 is a deficient number, since it is larger than the sum of its proper divisors (13588771).

720202001 is a wasteful number, since it uses less digits than its factorization.

720202001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13588770.

The product of its (nonzero) digits is 56, while the sum is 14.

The square root of 720202001 is about 26836.5795324218. The cubic root of 720202001 is about 896.3647607555.

Adding to 720202001 its reverse (100202027), we get a palindrome (820404028).

The spelling of 720202001 in words is "seven hundred twenty million, two hundred two thousand, one".