720701704 has 16 divisors (see below), whose sum is σ = 1353321900. Its totient is φ = 359815872.

The previous prime is 720701687. The next prime is 720701747. The reversal of 720701704 is 407107027.

It can be written as a sum of positive squares in 2 ways, for example, as 475152804 + 245548900 = 21798^2 + 15670^2 .

It is a super-2 number, since 2×720701704² = 1038821892297007232, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61119 + ... + 71950.

Almost surely, 2^720701704 is an apocalyptic number.

It is an amenable number.

720701704 is a deficient number, since it is larger than the sum of its proper divisors (632620196).

720701704 is a wasteful number, since it uses less digits than its factorization.

720701704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133752 (or 133748 counting only the distinct ones).

The product of its (nonzero) digits is 2744, while the sum is 28.

The square root of 720701704 is about 26845.8880277781. Note that the first 3 decimals coincide. The cubic root of 720701704 is about 896.5720232576.

The spelling of 720701704 in words is "seven hundred twenty million, seven hundred one thousand, seven hundred four".