720608005 has 32 divisors (see below), whose sum is σ = 970341120. Its totient is φ = 510251520.

The previous prime is 720607999. The next prime is 720608027. The reversal of 720608005 is 500806027.

It is not a de Polignac number, because 720608005 - 2⁵ = 720607973 is a prime.

It is a super-3 number, since 3×720608005³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 154944 + ... + 159526.

It is an arithmetic number, because the mean of its divisors is an integer number (30323160).

Almost surely, 2^720608005 is an apocalyptic number.

It is an amenable number.

720608005 is a deficient number, since it is larger than the sum of its proper divisors (249733115).

720608005 is a wasteful number, since it uses less digits than its factorization.

720608005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4701.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 720608005 is about 26844.1428434584. The cubic root of 720608005 is about 896.5331668937.

The spelling of 720608005 in words is "seven hundred twenty million, six hundred eight thousand, five".