720069724 has 24 divisors (see below), whose sum is σ = 1380598128. Its totient is φ = 325895040.

The previous prime is 720069673. The next prime is 720069761. The reversal of 720069724 is 427960027.

It is a happy number.

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, 24867 + ... + 45370.

It is an arithmetic number, because the mean of its divisors is an integer number (57524922).

Almost surely, 2^720069724 is an apocalyptic number.

It is an amenable number.

720069724 is a deficient number, since it is larger than the sum of its proper divisors (660528404).

720069724 is a wasteful number, since it uses less digits than its factorization.

720069724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70485 (or 70483 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 37.

The square root of 720069724 is about 26834.1149285755. The cubic root of 720069724 is about 896.3098799947.

The spelling of 720069724 in words is "seven hundred twenty million, sixty-nine thousand, seven hundred twenty-four".