720738484 has 6 divisors (see below), whose sum is σ = 1261292354. Its totient is φ = 360369240.

The previous prime is 720738461. The next prime is 720738493. The reversal of 720738484 is 484837027.

It can be written as a sum of positive squares in only one way, i.e., 484440100 + 236298384 = 22010^2 + 15372^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 720738484.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 90092307 + ... + 90092314.

Almost surely, 2^720738484 is an apocalyptic number.

It is an amenable number.

720738484 is a deficient number, since it is larger than the sum of its proper divisors (540553870).

720738484 is a wasteful number, since it uses less digits than its factorization.

720738484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180184625 (or 180184623 counting only the distinct ones).

The product of its (nonzero) digits is 301056, while the sum is 43.

The square root of 720738484 is about 26846.5730401480. The cubic root of 720738484 is about 896.5872747631.

The spelling of 720738484 in words is "seven hundred twenty million, seven hundred thirty-eight thousand, four hundred eighty-four".