720529972 has 24 divisors (see below), whose sum is σ = 1351195776. Its totient is φ = 334985088.

The previous prime is 720529967. The next prime is 720529981. The reversal of 720529972 is 279925027.

720529972 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58188 + ... + 69475.

It is an arithmetic number, because the mean of its divisors is an integer number (56299824).

Almost surely, 2^720529972 is an apocalyptic number.

It is an amenable number.

720529972 is a deficient number, since it is larger than the sum of its proper divisors (630665804).

720529972 is a wasteful number, since it uses less digits than its factorization.

720529972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127767 (or 127765 counting only the distinct ones).

The product of its (nonzero) digits is 158760, while the sum is 43.

The square root of 720529972 is about 26842.6893585572. The cubic root of 720529972 is about 896.5008045472.

The spelling of 720529972 in words is "seven hundred twenty million, five hundred twenty-nine thousand, nine hundred seventy-two".