720812696 has 8 divisors (see below), whose sum is σ = 1351523820. Its totient is φ = 360406344.

The previous prime is 720812693. The next prime is 720812707. The reversal of 720812696 is 696218027.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (720812693) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45050786 + ... + 45050801.

Almost surely, 2^720812696 is an apocalyptic number.

It is an amenable number.

720812696 is a deficient number, since it is larger than the sum of its proper divisors (630711124).

720812696 is a wasteful number, since it uses less digits than its factorization.

720812696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90101593 (or 90101589 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 41.

The square root of 720812696 is about 26847.9551549089. The cubic root of 720812696 is about 896.6180465584.

The spelling of 720812696 in words is "seven hundred twenty million, eight hundred twelve thousand, six hundred ninety-six".