720767513 has 8 divisors (see below), whose sum is σ = 779404032. Its totient is φ = 663935296.

The previous prime is 720767501. The next prime is 720767519. The reversal of 720767513 is 315767027.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 720767513 - 2⁴ = 720767497 is a prime.

It is not an unprimeable number, because it can be changed into a prime (720767519) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 450245 + ... + 451842.

It is an arithmetic number, because the mean of its divisors is an integer number (97425504).

Almost surely, 2^720767513 is an apocalyptic number.

It is an amenable number.

720767513 is a deficient number, since it is larger than the sum of its proper divisors (58636519).

720767513 is a wasteful number, since it uses less digits than its factorization.

720767513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 902151.

The product of its (nonzero) digits is 61740, while the sum is 38.

The square root of 720767513 is about 26847.1136809900. The cubic root of 720767513 is about 896.5993118071.

The spelling of 720767513 in words is "seven hundred twenty million, seven hundred sixty-seven thousand, five hundred thirteen".