717280087 has 2 divisors, whose sum is σ = 717280088. Its totient is φ = 717280086.

The previous prime is 717280037. The next prime is 717280121. The reversal of 717280087 is 780082717.

It is a happy number.

717280087 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 717280087 - 2¹⁵ = 717247319 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (717280007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 358640043 + 358640044.

It is an arithmetic number, because the mean of its divisors is an integer number (358640044).

Almost surely, 2^717280087 is an apocalyptic number.

717280087 is a deficient number, since it is larger than the sum of its proper divisors (1).

717280087 is an equidigital number, since it uses as much as digits as its factorization.

It is an anagram of its base 12 representation: 717280087 = (180270787)₁₂.

717280087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 43904, while the sum is 40.

The square root of 717280087 is about 26782.0851876772. The cubic root of 717280087 is about 895.1509111650.

The spelling of 717280087 in words is "seven hundred seventeen million, two hundred eighty thousand, eighty-seven".