720435652 has 6 divisors (see below), whose sum is σ = 1260762398. Its totient is φ = 360217824.

The previous prime is 720435623. The next prime is 720435659. The reversal of 720435652 is 256534027.

It can be written as a sum of positive squares in only one way, i.e., 706177476 + 14258176 = 26574^2 + 3776^2 .

It is a super-3 number, since 3×720435652³ (a number of 28 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (720435659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 90054453 + ... + 90054460.

Almost surely, 2^720435652 is an apocalyptic number.

It is an amenable number.

720435652 is a deficient number, since it is larger than the sum of its proper divisors (540326746).

720435652 is a wasteful number, since it uses less digits than its factorization.

720435652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180108917 (or 180108915 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 34.

The square root of 720435652 is about 26840.9323981117. The cubic root of 720435652 is about 896.4616844323.

Adding to 720435652 its reverse (256534027), we get a palindrome (976969679).

The spelling of 720435652 in words is "seven hundred twenty million, four hundred thirty-five thousand, six hundred fifty-two".