716522409 has 64 divisors (see below), whose sum is σ = 1156711680. Its totient is φ = 436700160.

The previous prime is 716522407. The next prime is 716522431. The reversal of 716522409 is 904225617.

716522409 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 716522409 - 2¹ = 716522407 is a prime.

It is not an unprimeable number, because it can be changed into a prime (716522407) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4395762 + ... + 4395924.

It is an arithmetic number, because the mean of its divisors is an integer number (18073620).

Almost surely, 2^716522409 is an apocalyptic number.

It is an amenable number.

716522409 is a deficient number, since it is larger than the sum of its proper divisors (440189271).

716522409 is a wasteful number, since it uses less digits than its factorization.

716522409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407 (or 401 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 716522409 is about 26767.9362110716. The cubic root of 716522409 is about 894.8356112256.

The spelling of 716522409 in words is "seven hundred sixteen million, five hundred twenty-two thousand, four hundred nine".