716649988 has 24 divisors (see below), whose sum is σ = 1287067320. Its totient is φ = 348948480.

The previous prime is 716649959. The next prime is 716650009. The reversal of 716649988 is 889946617.

It can be written as a sum of positive squares in 4 ways, for example, as 119727364 + 596922624 = 10942^2 + 24432^2 .

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, 93568 + ... + 100936.

It is an arithmetic number, because the mean of its divisors is an integer number (53627805).

Almost surely, 2^716649988 is an apocalyptic number.

It is an amenable number.

716649988 is a deficient number, since it is larger than the sum of its proper divisors (570417332).

716649988 is a wasteful number, since it uses less digits than its factorization.

716649988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8007 (or 8005 counting only the distinct ones).

The product of its digits is 5225472, while the sum is 58.

The square root of 716649988 is about 26770.3191613399. The cubic root of 716649988 is about 894.8887174769. Note that the first 3 decimals are identical.

The spelling of 716649988 in words is "seven hundred sixteen million, six hundred forty-nine thousand, nine hundred eighty-eight".