716990785 has 48 divisors (see below), whose sum is σ = 1049310720. Its totient is φ = 468357120.

The previous prime is 716990779. The next prime is 716990789. The reversal of 716990785 is 587099617.

It is a happy number.

It is not a de Polignac number, because 716990785 - 2³ = 716990777 is a prime.

It is not an unprimeable number, because it can be changed into a prime (716990789) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 508161 + ... + 509569.

It is an arithmetic number, because the mean of its divisors is an integer number (21860640).

Almost surely, 2^716990785 is an apocalyptic number.

It is an amenable number.

716990785 is a deficient number, since it is larger than the sum of its proper divisors (332319935).

716990785 is a wasteful number, since it uses less digits than its factorization.

716990785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1526 (or 1519 counting only the distinct ones).

The product of its (nonzero) digits is 952560, while the sum is 52.

The square root of 716990785 is about 26776.6836071983. The cubic root of 716990785 is about 895.0305473173.

The spelling of 716990785 in words is "seven hundred sixteen million, nine hundred ninety thousand, seven hundred eighty-five".