720808364 has 24 divisors (see below), whose sum is σ = 1336441680. Its totient is φ = 338994176.

The previous prime is 720808349. The next prime is 720808379. The reversal of 720808364 is 463808027.

It is an interprime number because it is at equal distance from previous prime (720808349) and next prime (720808379).

It is a super-2 number, since 2×720808364² = 1039129395224712992, which contains 22 as substring.

720808364 is a modest number, since divided by 8364 gives 7208 as remainder.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 195167 + ... + 198825.

It is an arithmetic number, because the mean of its divisors is an integer number (55685070).

Almost surely, 2^720808364 is an apocalyptic number.

It is an amenable number.

720808364 is a deficient number, since it is larger than the sum of its proper divisors (615633316).

720808364 is a wasteful number, since it uses less digits than its factorization.

720808364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6577 (or 6575 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 38.

The square root of 720808364 is about 26847.8744782525. The cubic root of 720808364 is about 896.6162503649.

The spelling of 720808364 in words is "seven hundred twenty million, eight hundred eight thousand, three hundred sixty-four".