720535716 has 24 divisors (see below), whose sum is σ = 1868055840. Its totient is φ = 240178536.

The previous prime is 720535679. The next prime is 720535733. The reversal of 720535716 is 617535027.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3335706 + ... + 3335921.

It is an arithmetic number, because the mean of its divisors is an integer number (77835660).

Almost surely, 2^720535716 is an apocalyptic number.

It is an amenable number.

720535716 is an abundant number, since it is smaller than the sum of its proper divisors (1147520124).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

720535716 is a wasteful number, since it uses less digits than its factorization.

720535716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6671640 (or 6671632 counting only the distinct ones).

The product of its (nonzero) digits is 44100, while the sum is 36.

The square root of 720535716 is about 26842.7963520942. The cubic root of 720535716 is about 896.5031868154.

The spelling of 720535716 in words is "seven hundred twenty million, five hundred thirty-five thousand, seven hundred sixteen".