716887489 has 2 divisors, whose sum is σ = 716887490. Its totient is φ = 716887488.

The previous prime is 716887447. The next prime is 716887541. The reversal of 716887489 is 984788617.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 502118464 + 214769025 = 22408^2 + 14655^2 .

It is an emirp because it is prime and its reverse (984788617) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 716887489 - 2⁷ = 716887361 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (716887289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 358443744 + 358443745.

It is an arithmetic number, because the mean of its divisors is an integer number (358443745).

Almost surely, 2^716887489 is an apocalyptic number.

It is an amenable number.

716887489 is a deficient number, since it is larger than the sum of its proper divisors (1).

716887489 is an equidigital number, since it uses as much as digits as its factorization.

716887489 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5419008, while the sum is 58.

The square root of 716887489 is about 26774.7546954216. The cubic root of 716887489 is about 894.9875632615.

The spelling of 716887489 in words is "seven hundred sixteen million, eight hundred eighty-seven thousand, four hundred eighty-nine".