720914506 has 32 divisors (see below), whose sum is σ = 1185948288. Its totient is φ = 326652480.

The previous prime is 720914503. The next prime is 720914527. The reversal of 720914506 is 605419027.

It is a super-2 number, since 2×720914506² = 1039435449922448072, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (720914501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 732891 + ... + 733873.

It is an arithmetic number, because the mean of its divisors is an integer number (37060884).

Almost surely, 2^720914506 is an apocalyptic number.

720914506 is a deficient number, since it is larger than the sum of its proper divisors (465033782).

720914506 is a wasteful number, since it uses less digits than its factorization.

720914506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1486.

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 720914506 is about 26849.8511355277. The cubic root of 720914506 is about 896.6602583500.

The spelling of 720914506 in words is "seven hundred twenty million, nine hundred fourteen thousand, five hundred six".