720558465 has 32 divisors (see below), whose sum is σ = 1262259072. Its totient is φ = 348096000.

The previous prime is 720558463. The next prime is 720558473. The reversal of 720558465 is 564855027.

720558465 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 720558465 - 2¹ = 720558463 is a prime.

It is not an unprimeable number, because it can be changed into a prime (720558463) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 38595 + ... + 54135.

It is an arithmetic number, because the mean of its divisors is an integer number (39445596).

Almost surely, 2^720558465 is an apocalyptic number.

It is an amenable number.

720558465 is a deficient number, since it is larger than the sum of its proper divisors (541700607).

720558465 is a wasteful number, since it uses less digits than its factorization.

720558465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15841.

The product of its (nonzero) digits is 336000, while the sum is 42.

The square root of 720558465 is about 26843.2200937220. The cubic root of 720558465 is about 896.5126216178.

The spelling of 720558465 in words is "seven hundred twenty million, five hundred fifty-eight thousand, four hundred sixty-five".